California condor (English Wikipedia)

Sherriff, Lucy (November 28, 2024). "How a tribe brought back its sacred California condors". BBC. Retrieved November 29, 2024. The Yurok Tribe has released 18 condors

berkeley.edu (Global: 580^th place; English: 462^nd place)

digitalassets.lib.berkeley.edu

Gifford, E.W. (May 8, 1926). "Miwok Cults" (PDF). University of California Publications in American Archaeology and Ethnology. 18 (3): 394–396. Retrieved April 20, 2024. The eagle and condor were bird chiefs and their capture or killing was always preceded by the making of meal or seed offerings.
Kroeber, A.L. (February 27, 1932). "The Patwin and their neighbours" (PDF). University of California Publications in American Archaeology and Ethnology. 29 (4): 279. Retrieved April 20, 2024. Eagles (sul) and condors (molok), were shot, not netted, according to most informants; though one told of a spring noose on a bent-over live oak sapling.

news.berkeley.edu

Sanders, Robert (May 13, 2021). "High genomic diversity is good news for California condor". Berkeley News. University of California Berkeley. Retrieved April 24, 2024.

digicoll.lib.berkeley.edu

Gifford, E.W.; Kroeber, A.L. (July 1, 1937). "Culture Element Distributions: IV Pomo". University of California Publications in American Archaeology and Ethnology. 37 (4): 170, 130. Retrieved April 20, 2024. Whole condor (sul) skin worn by male dancer.

biodiversitylibrary.org (Global: 387^th place; English: 373^rd place)

Baird, S. F.; Brewer, T. M.; Ridgway, R. (1874). "Genus Pseudogryphus, Ridgway". A History of North American Birds. Vol. 3. Boston: Little, Brown, and Company. pp. 338–343. Archived from the original on November 7, 2017. Retrieved October 31, 2017.
Shaw, George (1797). "Vultur californianus The Californian Vulture". The Naturalist's Miscellany. Vol. 9. Pl. 301. Archived from the original on November 7, 2017. Retrieved October 31, 2017.

birdlife.org (Global: 2,179^th place; English: 1,991^st place)

BirdLife International (2007) Species factsheet: California Condor Gymnogyps californianus Archived October 13, 2016, at the Wayback Machine. Retrieved August 17, 2007

books.google.com (Global: 3^rd place; English: 3^rd place)

Sibley, Charles G. and Monroe, Burt L. 1990. Distribution and Taxonomy of the Birds of the World Archived July 17, 2021, at the Wayback Machine. Yale University Press. ISBN 0-300-04969-2. Accessed April 11, 2007.
Sibley, Charles G., and Ahlquist, Jon E. 1991. Phylogeny and Classification of Birds: A Study in Molecular Evolution Archived October 13, 2020, at the Wayback Machine. Yale University Press. ISBN 0-300-04085-7. Accessed April 11, 2007.
Majors, Harry M. (1975). Exploring Washington. Van Winkle Publishing Co. p. 114. ISBN 978-0-918664-00-6. Archived from the original on January 2, 2020. Retrieved October 23, 2015.

ca.gov (Global: 421^st place; English: 263^rd place)

parks.ca.gov

Foster, J.W (2024). "Wings of the Spirit: The Place of the California Condor Among Native Peoples of the Californias". California Department of Parks and Recreation. State of California. Archived from the original on September 28, 2025. Retrieved November 18, 2025. It is apparent that California condors held a special place in the lives and ceremonies of California natives.
Foster, J.W (2024). "Wings of the Spirit: The Place of the California Condor Among Native Peoples of the Californias". California Department of Parks and Recreation. State of California. Retrieved March 4, 2024. Many ceremonies throughout California involved dancers dressed in capes of condor skins or condor feather bands

info.sen.ca.gov

"Assembly Bill No. 821" (PDF). CA State Senate. Archived from the original (PDF) on September 10, 2008. Retrieved July 3, 2008.

nrm.dfg.ca.gov

Hovey, Tim E.; Pareti, Jennifer S. (2020). "Unusual feeding observations of the California condor in the wild". California Fish and Wildlife. 106 (2): 191–193. Retrieved April 24, 2024.

cacondorconservation.org (Global: low place; English: low place)

Galindo, Yadira (June 18, 2009). "Condor Chick Hatches in Mexican Wilderness". California Condor Conservation. Archived from the original on February 4, 2011. Retrieved March 1, 2011.

cites.org (Global: 2,927^th place; English: 2,249^th place)

"Appendices | CITES". cites.org. Archived from the original on February 4, 2010. Retrieved January 14, 2022.

cnn.com (Global: 28^th place; English: 26^th place)

"Once nearly extinct, the California condor nears new milestones". CNN. April 27, 2011. Archived from the original on August 4, 2018. Retrieved April 27, 2011.
Andrew, Scottie; Ries, Brian (July 22, 2019). "The 1,000th California condor has hatched in a victory for the species that nearly went extinct". CNN. Archived from the original on July 28, 2019. Retrieved July 28, 2019.

condortales.com (Global: low place; English: low place)

Wilbur, S. (2021). "Condors and Indians". Symbios Books. Archived from the original on April 21, 2024. Retrieved November 18, 2025.

condorwatch.org (Global: low place; English: low place)

"Condor Watch Archived". Zooniverse. Archived from the original on May 5, 2020. Retrieved February 13, 2020.

confex.com (Global: 6,094^th place; English: 4,186^th place)

gsa.confex.com

V.J. Syverson (2007). "Evolutionary Patterns in Pleistocene to Recent California Condors". Geological Society of America. 39 (6). Archived from the original on March 3, 2016. Retrieved August 28, 2014.

cornell.edu (Global: 332^nd place; English: 246^th place)

bna.birds.cornell.edu

"The Birds of North America Online: California Condor". Cornell Lab of Ornithology. 2003. Archived from the original on June 18, 2020. Retrieved August 22, 2007.

birds.cornell.edu

"All About Birds: California Condor". Cornell Lab of Ornithology. 2003. Archived from the original on July 14, 2007. Retrieved August 22, 2007.

doi.org (Global: 2^nd place; English: 2^nd place)

BirdLife International (2020). "Gymnogyps californianus". IUCN Red List of Threatened Species. 2020 e.T22697636A181151405. doi:10.2305/IUCN.UK.2020-3.RLTS.T22697636A181151405.en. Retrieved March 9, 2022.
Ericson, Per G. P.; Anderson, Cajsa L.; Britton, Tom; Elzanowski, Andrzej; Johansson, Ulf S.; Kallersjö, Mari; Ohlson, Jan I.; Parsons, Thomas J.; Zuccon, Dario; Mayr, Gerald (2006). "Diversification of Neoaves: integration of molecular sequence data and fossils" (PDF). Biology Letters. 2 (4): 1–5. doi:10.1098/rsbl.2006.0523. PMC 1834003. PMID 17148284. Archived from the original (PDF) on November 8, 2006. Electronic Supplementary Material Archived August 6, 2017, at the Wayback Machine (PDF)
Fisher, Harvey L. (1944). "The skulls of the Cathartid vultures" (PDF). Condor. 46 (6): 272–296. doi:10.2307/1364013. JSTOR 1364013. Archived (PDF) from the original on November 17, 2015. Retrieved February 22, 2013.
Howard, Hildegarde (1947). "A preliminary survey of trends in avian evolution from Pleistocene to recent time" (PDF). Condor. 49 (1): 10–13. doi:10.2307/1364422. JSTOR 1364422. Archived (PDF) from the original on September 25, 2021. Retrieved February 22, 2013.
Howard, Hildegarde (1962). "Bird Remains from a Prehistoric Cave Deposit in Grant County, New Mexico" (PDF). Condor. 64 (3): 241–242. doi:10.2307/1365205. JSTOR 1365205. Archived (PDF) from the original on July 14, 2014. Retrieved February 22, 2013.
Gibb, G. C.; Kardailsky, O.; Kimball, R. T.; Braun, E. L. & Penny, D. (2007). "Mitochondrial genomes and avian phylogeny: complex characters and resolvability without explosive radiations". Molecular Biology and Evolution. 24 (1): 269–280. CiteSeerX 10.1.1.106.1680. doi:10.1093/molbev/msl158. PMID 17062634.
Miller, Loye (1960). "Condor Remains from Rampart Cave, Arizona" (PDF). Condor. 62 (1): 65–71. doi:10.2307/1365660. JSTOR 1365660. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Miller, Loye (1931). "The California Condor in Nevada" (PDF). Condor. 33 (1): 29–38. doi:10.2307/1363932. JSTOR 1363932. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander (1931). "The California Condor in New Mexico" (PDF). Condor. 33 (2): 76–77. doi:10.2307/1363313. JSTOR 1363313. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander (1932). "Additional Records of Birds from Cavern Deposits in New Mexico" (PDF). Condor. 34 (3): 141–142. doi:10.2307/1363542. JSTOR 1363542. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander; Friedmann, Herbert (1938). "The California Condor in Texas" (PDF). Condor. 35 (1): 37–38. doi:10.2307/1363462. JSTOR 1363462. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Ryder, Oliver A; Thomas, Steven; Judson, Jessica Martin; Romanov, Michael N; Dandekar, Sugandha; Papp, Jeanette C; Sidak-Loftis, Lindsay C; Walker, Kelli; Stalis, Ilse H; Mace, Michael; Steiner, Cynthia C; Chemnick, Leona G (2021). "Facultative Parthenogenesis in California Condors". Journal of Heredity. 112 (7): 569–574. doi:10.1093/jhered/esab052. PMC 8683835. PMID 34718632. (Advance Access publication, October 28, 2021.)
Rideout, BA; Stalis, I; Papendick, R; Pessier, A; Puschner, B; Finkelstein, ME; Smith, DR; Johnson, M; Mace, M; Stroud, R; Brandt, J; Burnett, J; Parish, C; Petterson, J; Witte, C; Stringfield, C; Orr, K; Zuba, J; Wallace, M; Grantham, J (2012). "Patterns of mortality in free-ranging California Condors (Gymnogyps californianus)". Journal of Wildlife Diseases. 48 (1): 95–112. Bibcode:2012JWDis..48...95R. doi:10.7589/0090-3558-48.1.95. PMID 22247378. S2CID 9680916.
Church, ME; Gwiazda, R; Risebrough, RW; Sorenson, K; Chamberlain, CP; Farry, S; Heinrich, W; Rideout, BA; Smith, DR (2006). "Ammunition is the Principal Source of Lead Accumulated by California Condors Re-Introduced to the Wild". Environmental Science & Technology. 40 (19): 6143–50. Bibcode:2006EnST...40.6143C. doi:10.1021/es060765s. PMID 17051813. Archived from the original on August 23, 2020. Retrieved June 29, 2019.
Kiff, L. F.; Peakall, D. B.; Wilbur, S. R. (1979). "Recent Changes in California Condor Eggshells" (PDF). Condor. 81 (2): 166–172. Bibcode:1979Condo..81..166K. doi:10.2307/1367284. JSTOR 1367284. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Robinson, Jacqueline A.; Bowie, Rauri C.K.; Dudchenko, Olga; Liberman Aiden, Erez; Hendrickson, Sher L.; Steiner, Cynthia C.; Ryder, Oliver A.; Mindell, David P.; Wall, Jeffrey D. (July 12, 2021). "Genome-wide diversity in the California condor tracks its prehistoric abundance and decline". Current Biology. 31 (13): P2939–2946.E5. Bibcode:2021CBio...31E2939R. doi:10.1016/j.cub.2021.04.035. PMID 33989525.
Thacker, Paul D.; Lubick, Naomi; Renner, Rebecca; Christen, Kris; Pelley, Janet (2006). "Condors are shot full of lead". Environmental Science & Technology. 40 (19): 5826–5831. doi:10.1021/es063001l. PMID 17051760.
Church, Molly E.; Gwiazda, Roberto; Risebrough, Robert W.; Sorenson, Kelly; Chamberlain, C. Page; Farry, Sean; Heinrich, William; Rideout, Bruce A.; Smith, Donald R. (October 1, 2006). "Ammunition is the principal source of lead accumulated by California condors re-introduced to the wild". Environmental Science & Technology. 40 (19): 6143–50. Bibcode:2006EnST...40.6143C. doi:10.1021/es060765s. PMID 17051813.
Kelly, Terra R.; Peter H. Bloom; Stever G. Torres; Yvette Z. Hernandez; Robert H. Poppenga; Walter M. Boyce; Christine K. Johnson (2011). Iwaniuk, Andrew (ed.). "Impact of the California Lead Ammunition Ban of Reducing Lead Exposures in Golden Eagles and Turkey Vultures". PLOS ONE. 6 (4) e17656. Bibcode:2011PLoSO...617656K. doi:10.1371/journal.pone.0017656. PMC 3071804. PMID 21494329.
Kelly, Terra R.; Grantham, Jesse; George, Daniel; Welch, Alacia; Brandt, Joseph; Burnett, L. Joseph; Sorenson, Kelly J.; Johnson, Matthew; Poppenga, Robert; Moen, David; Rasico, James; Rivers, James W.; Batistone, Carie; Johnson, Christine K. (July 15, 2014). "Spatiotemporal Patterns and Risk Factors for Lead Exposure in Endangered California Condors during 15 Years of Reintroduction". Conservation Biology. 28 (6): 1721–1730. Bibcode:2014ConBi..28.1721K. doi:10.1111/cobi.12342. PMID 25040286.
Wallace, William J.; Lathrap, Donald W. (1959). "Ceremonial Bird Burials in San Francisco Bay Shellmounds". American Antiquity. 25 (2): 262–264. doi:10.2307/277447. JSTOR 277447. S2CID 163835230.

escholarship.org (Global: 1,523^rd place; English: 976^th place)

Church, ME; Gwiazda, R; Risebrough, RW; Sorenson, K; Chamberlain, CP; Farry, S; Heinrich, W; Rideout, BA; Smith, DR (2006). "Ammunition is the Principal Source of Lead Accumulated by California Condors Re-Introduced to the Wild". Environmental Science & Technology. 40 (19): 6143–50. Bibcode:2006EnST...40.6143C. doi:10.1021/es060765s. PMID 17051813. Archived from the original on August 23, 2020. Retrieved June 29, 2019.

excelsior.com.mx (Global: 1,756^th place; English: 3,764^th place)

"Polluelos de cóndor de California inician el 'vuelo' hacia su liberación" (in Spanish). June 27, 2016. Archived from the original on September 14, 2022. Retrieved June 26, 2016.

foxweather.com (Global: low place; English: low place)

Yablonski, Steven (February 14, 2024). "Endangered California condors compete for love on Valentine's Day: It's complicated". FOX Weather. Retrieved March 20, 2024.

fws.gov (Global: 2,434^th place; English: 1,524^th place)

"Last Wild California Condor Capture for Breeding Program" (PDF). U.S. Fish & Wildlife Service (press release). Archived (PDF) from the original on August 18, 2016. Retrieved May 6, 2009.
"California Condor Recovery Program 2024 Annual Population Status" (PDF). U.S. Fish & Wildlife Service. December 31, 2024. Retrieved September 24, 2025.
"California condor, (Gymnogyps californianus)". U.S. Fish and Wildlife Service. Archived from the original on April 1, 2013. Retrieved August 14, 2007.
"California Condor Behavior". U.S. Fish and Wildlife Service, Hopper Mountain National Wildlife Refuge. Archived from the original on April 16, 2007. Retrieved August 22, 2007.
"Frequently Asked Questions". U.S. Fish and Wildlife Service, Hopper Mountain National Wildlife Refuge. Archived from the original on August 8, 2007. Retrieved August 23, 2007.
"California Condor Recovery Program". U.S. Fish & Wildlife Service. November 3, 2023. Retrieved November 3, 2023.
"California Condor Recovery Program". U.S. Fish and Wildlife Service, Hopper Mountain National Wildlife Refuge. December 2006. Archived from the original on September 11, 2007. Retrieved September 13, 2007.
"California Condor HPAI Response Update - June 2, 2023". U.S. Fish & Wildlife Service. June 2, 2023. Retrieved April 24, 2024.
"California Condor HPAI Response Update - August 4, 2023". U.S. Fish & Wildlife Service. August 4, 2023. Retrieved April 24, 2024.
"California Condors & HPAI Update". U.S. Fish & Wildlife Service. February 2, 2024. Retrieved April 24, 2024.
"California Condor Recovery Program". U.S. Fish & Wildlife Service U.S. Fish & Wildlife Service. Archived from the original on August 27, 2016. Retrieved July 11, 2017.
Fabbri, R. (July 14, 2022). "Meet the condors of the Pacific Northwest". U.S. Fish & Wildlife Service. Retrieved April 3, 2024.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Rideout, BA; Stalis, I; Papendick, R; Pessier, A; Puschner, B; Finkelstein, ME; Smith, DR; Johnson, M; Mace, M; Stroud, R; Brandt, J; Burnett, J; Parish, C; Petterson, J; Witte, C; Stringfield, C; Orr, K; Zuba, J; Wallace, M; Grantham, J (2012). "Patterns of mortality in free-ranging California Condors (Gymnogyps californianus)". Journal of Wildlife Diseases. 48 (1): 95–112. Bibcode:2012JWDis..48...95R. doi:10.7589/0090-3558-48.1.95. PMID 22247378. S2CID 9680916.
Church, ME; Gwiazda, R; Risebrough, RW; Sorenson, K; Chamberlain, CP; Farry, S; Heinrich, W; Rideout, BA; Smith, DR (2006). "Ammunition is the Principal Source of Lead Accumulated by California Condors Re-Introduced to the Wild". Environmental Science & Technology. 40 (19): 6143–50. Bibcode:2006EnST...40.6143C. doi:10.1021/es060765s. PMID 17051813. Archived from the original on August 23, 2020. Retrieved June 29, 2019.
Kiff, L. F.; Peakall, D. B.; Wilbur, S. R. (1979). "Recent Changes in California Condor Eggshells" (PDF). Condor. 81 (2): 166–172. Bibcode:1979Condo..81..166K. doi:10.2307/1367284. JSTOR 1367284. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Robinson, Jacqueline A.; Bowie, Rauri C.K.; Dudchenko, Olga; Liberman Aiden, Erez; Hendrickson, Sher L.; Steiner, Cynthia C.; Ryder, Oliver A.; Mindell, David P.; Wall, Jeffrey D. (July 12, 2021). "Genome-wide diversity in the California condor tracks its prehistoric abundance and decline". Current Biology. 31 (13): P2939–2946.E5. Bibcode:2021CBio...31E2939R. doi:10.1016/j.cub.2021.04.035. PMID 33989525.
Church, Molly E.; Gwiazda, Roberto; Risebrough, Robert W.; Sorenson, Kelly; Chamberlain, C. Page; Farry, Sean; Heinrich, William; Rideout, Bruce A.; Smith, Donald R. (October 1, 2006). "Ammunition is the principal source of lead accumulated by California condors re-introduced to the wild". Environmental Science & Technology. 40 (19): 6143–50. Bibcode:2006EnST...40.6143C. doi:10.1021/es060765s. PMID 17051813.
Kelly, Terra R.; Peter H. Bloom; Stever G. Torres; Yvette Z. Hernandez; Robert H. Poppenga; Walter M. Boyce; Christine K. Johnson (2011). Iwaniuk, Andrew (ed.). "Impact of the California Lead Ammunition Ban of Reducing Lead Exposures in Golden Eagles and Turkey Vultures". PLOS ONE. 6 (4) e17656. Bibcode:2011PLoSO...617656K. doi:10.1371/journal.pone.0017656. PMC 3071804. PMID 21494329.
Kelly, Terra R.; Grantham, Jesse; George, Daniel; Welch, Alacia; Brandt, Joseph; Burnett, L. Joseph; Sorenson, Kelly J.; Johnson, Matthew; Poppenga, Robert; Moen, David; Rasico, James; Rivers, James W.; Batistone, Carie; Johnson, Christine K. (July 15, 2014). "Spatiotemporal Patterns and Risk Factors for Lead Exposure in Endangered California Condors during 15 Years of Reintroduction". Conservation Biology. 28 (6): 1721–1730. Bibcode:2014ConBi..28.1721K. doi:10.1111/cobi.12342. PMID 25040286.

iucnredlist.org (Global: 88^th place; English: 160^th place)

BirdLife International (2020). "Gymnogyps californianus". IUCN Red List of Threatened Species. 2020 e.T22697636A181151405. doi:10.2305/IUCN.UK.2020-3.RLTS.T22697636A181151405.en. Retrieved March 9, 2022.

jstor.org (Global: 26^th place; English: 20^th place)

Fisher, Harvey L. (1944). "The skulls of the Cathartid vultures" (PDF). Condor. 46 (6): 272–296. doi:10.2307/1364013. JSTOR 1364013. Archived (PDF) from the original on November 17, 2015. Retrieved February 22, 2013.
Howard, Hildegarde (1947). "A preliminary survey of trends in avian evolution from Pleistocene to recent time" (PDF). Condor. 49 (1): 10–13. doi:10.2307/1364422. JSTOR 1364422. Archived (PDF) from the original on September 25, 2021. Retrieved February 22, 2013.
Howard, Hildegarde (1962). "Bird Remains from a Prehistoric Cave Deposit in Grant County, New Mexico" (PDF). Condor. 64 (3): 241–242. doi:10.2307/1365205. JSTOR 1365205. Archived (PDF) from the original on July 14, 2014. Retrieved February 22, 2013.
Miller, Loye (1960). "Condor Remains from Rampart Cave, Arizona" (PDF). Condor. 62 (1): 65–71. doi:10.2307/1365660. JSTOR 1365660. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Miller, Loye (1931). "The California Condor in Nevada" (PDF). Condor. 33 (1): 29–38. doi:10.2307/1363932. JSTOR 1363932. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander (1931). "The California Condor in New Mexico" (PDF). Condor. 33 (2): 76–77. doi:10.2307/1363313. JSTOR 1363313. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander (1932). "Additional Records of Birds from Cavern Deposits in New Mexico" (PDF). Condor. 34 (3): 141–142. doi:10.2307/1363542. JSTOR 1363542. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander; Friedmann, Herbert (1938). "The California Condor in Texas" (PDF). Condor. 35 (1): 37–38. doi:10.2307/1363462. JSTOR 1363462. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Kiff, L. F.; Peakall, D. B.; Wilbur, S. R. (1979). "Recent Changes in California Condor Eggshells" (PDF). Condor. 81 (2): 166–172. Bibcode:1979Condo..81..166K. doi:10.2307/1367284. JSTOR 1367284. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wallace, William J.; Lathrap, Donald W. (1959). "Ceremonial Bird Burials in San Francisco Bay Shellmounds". American Antiquity. 25 (2): 262–264. doi:10.2307/277447. JSTOR 277447. S2CID 163835230.

kalw.org (Global: low place; English: low place)

Kapnik, Alyssa. "Program To Save The California Condor From Extinction Is Making Strides". KALW. Archived from the original on August 7, 2019. Retrieved August 7, 2019.

latimes.com (Global: 22^nd place; English: 19^th place)

Reyes-Velarde, Alejandra (May 14, 2019). "These condor chicks have a better chance in the wild, thanks to the L.A. Zoo". Los Angeles Times. Archived from the original on May 14, 2019. Retrieved May 14, 2019.
Banks, Alicia (June 16, 2014) "Condor spotted in San Mateo County is first in 110 years" Archived June 20, 2014, at the Wayback Machine Los Angeles Times

lsu.edu (Global: 3,324^th place; English: 2,257^th place)

museum.lsu.edu

Remsen, J. V. Jr.; C. D. Cadena; A. Jaramillo; M. Nores; J. F. Pacheco; M. B. Robbins; T. S. Schulenberg; F. G. Stiles; D. F. Stotz & K. J. Zimmer. 2007. A Classification of the Bird Species of South America. Archived March 2, 2009, at the Wayback Machine South American Classification Committee. Retrieved on October 15, 2007

montereycountynow.com (Global: low place; English: low place)

Thornton, Stuart (January 24, 2008). "Little Lost Condor: After a fight with a golden eagle in Big Sur, Centennia disappears". Monterey County Now. Retrieved April 24, 2024.

motherjones.com (Global: 2,008^th place; English: 1,197^th place)

Zhang, Sarah (January 3, 2013). "How Dangerous Is the Lead in Bullets?". Mother Jones. Archived from the original on June 21, 2019. Retrieved January 8, 2020. The most direct solution is switching to lead-free ammunition or at least jacketed bullets, which have a lead core covered with a coating made of copper or nylon. Lead has been traditionally favored because of its density, but the military has since developed lead-free ammunition that reportedly works just as well.

nationalgeographic.com (Global: 344^th place; English: 296^th place)

Bittel, Jason (October 28, 2021). "Endangered birds experience 'virgin birth,' a first for the species". National Geographic. Archived from the original on February 7, 2022. Retrieved October 30, 2021.

natureserve.org (Global: 5,367^th place; English: 2,998^th place)

explorer.natureserve.org

"NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved November 16, 2022.

nih.gov (Global: 4^th place; English: 4^th place)

pubmed.ncbi.nlm.nih.gov

Ericson, Per G. P.; Anderson, Cajsa L.; Britton, Tom; Elzanowski, Andrzej; Johansson, Ulf S.; Kallersjö, Mari; Ohlson, Jan I.; Parsons, Thomas J.; Zuccon, Dario; Mayr, Gerald (2006). "Diversification of Neoaves: integration of molecular sequence data and fossils" (PDF). Biology Letters. 2 (4): 1–5. doi:10.1098/rsbl.2006.0523. PMC 1834003. PMID 17148284. Archived from the original (PDF) on November 8, 2006. Electronic Supplementary Material Archived August 6, 2017, at the Wayback Machine (PDF)
Gibb, G. C.; Kardailsky, O.; Kimball, R. T.; Braun, E. L. & Penny, D. (2007). "Mitochondrial genomes and avian phylogeny: complex characters and resolvability without explosive radiations". Molecular Biology and Evolution. 24 (1): 269–280. CiteSeerX 10.1.1.106.1680. doi:10.1093/molbev/msl158. PMID 17062634.
Ryder, Oliver A; Thomas, Steven; Judson, Jessica Martin; Romanov, Michael N; Dandekar, Sugandha; Papp, Jeanette C; Sidak-Loftis, Lindsay C; Walker, Kelli; Stalis, Ilse H; Mace, Michael; Steiner, Cynthia C; Chemnick, Leona G (2021). "Facultative Parthenogenesis in California Condors". Journal of Heredity. 112 (7): 569–574. doi:10.1093/jhered/esab052. PMC 8683835. PMID 34718632. (Advance Access publication, October 28, 2021.)
Rideout, BA; Stalis, I; Papendick, R; Pessier, A; Puschner, B; Finkelstein, ME; Smith, DR; Johnson, M; Mace, M; Stroud, R; Brandt, J; Burnett, J; Parish, C; Petterson, J; Witte, C; Stringfield, C; Orr, K; Zuba, J; Wallace, M; Grantham, J (2012). "Patterns of mortality in free-ranging California Condors (Gymnogyps californianus)". Journal of Wildlife Diseases. 48 (1): 95–112. Bibcode:2012JWDis..48...95R. doi:10.7589/0090-3558-48.1.95. PMID 22247378. S2CID 9680916.
Church, ME; Gwiazda, R; Risebrough, RW; Sorenson, K; Chamberlain, CP; Farry, S; Heinrich, W; Rideout, BA; Smith, DR (2006). "Ammunition is the Principal Source of Lead Accumulated by California Condors Re-Introduced to the Wild". Environmental Science & Technology. 40 (19): 6143–50. Bibcode:2006EnST...40.6143C. doi:10.1021/es060765s. PMID 17051813. Archived from the original on August 23, 2020. Retrieved June 29, 2019.
Robinson, Jacqueline A.; Bowie, Rauri C.K.; Dudchenko, Olga; Liberman Aiden, Erez; Hendrickson, Sher L.; Steiner, Cynthia C.; Ryder, Oliver A.; Mindell, David P.; Wall, Jeffrey D. (July 12, 2021). "Genome-wide diversity in the California condor tracks its prehistoric abundance and decline". Current Biology. 31 (13): P2939–2946.E5. Bibcode:2021CBio...31E2939R. doi:10.1016/j.cub.2021.04.035. PMID 33989525.
Thacker, Paul D.; Lubick, Naomi; Renner, Rebecca; Christen, Kris; Pelley, Janet (2006). "Condors are shot full of lead". Environmental Science & Technology. 40 (19): 5826–5831. doi:10.1021/es063001l. PMID 17051760.
Church, Molly E.; Gwiazda, Roberto; Risebrough, Robert W.; Sorenson, Kelly; Chamberlain, C. Page; Farry, Sean; Heinrich, William; Rideout, Bruce A.; Smith, Donald R. (October 1, 2006). "Ammunition is the principal source of lead accumulated by California condors re-introduced to the wild". Environmental Science & Technology. 40 (19): 6143–50. Bibcode:2006EnST...40.6143C. doi:10.1021/es060765s. PMID 17051813.
Kelly, Terra R.; Peter H. Bloom; Stever G. Torres; Yvette Z. Hernandez; Robert H. Poppenga; Walter M. Boyce; Christine K. Johnson (2011). Iwaniuk, Andrew (ed.). "Impact of the California Lead Ammunition Ban of Reducing Lead Exposures in Golden Eagles and Turkey Vultures". PLOS ONE. 6 (4) e17656. Bibcode:2011PLoSO...617656K. doi:10.1371/journal.pone.0017656. PMC 3071804. PMID 21494329.
Kelly, Terra R.; Grantham, Jesse; George, Daniel; Welch, Alacia; Brandt, Joseph; Burnett, L. Joseph; Sorenson, Kelly J.; Johnson, Matthew; Poppenga, Robert; Moen, David; Rasico, James; Rivers, James W.; Batistone, Carie; Johnson, Christine K. (July 15, 2014). "Spatiotemporal Patterns and Risk Factors for Lead Exposure in Endangered California Condors during 15 Years of Reintroduction". Conservation Biology. 28 (6): 1721–1730. Bibcode:2014ConBi..28.1721K. doi:10.1111/cobi.12342. PMID 25040286.

ncbi.nlm.nih.gov

Ericson, Per G. P.; Anderson, Cajsa L.; Britton, Tom; Elzanowski, Andrzej; Johansson, Ulf S.; Kallersjö, Mari; Ohlson, Jan I.; Parsons, Thomas J.; Zuccon, Dario; Mayr, Gerald (2006). "Diversification of Neoaves: integration of molecular sequence data and fossils" (PDF). Biology Letters. 2 (4): 1–5. doi:10.1098/rsbl.2006.0523. PMC 1834003. PMID 17148284. Archived from the original (PDF) on November 8, 2006. Electronic Supplementary Material Archived August 6, 2017, at the Wayback Machine (PDF)
Ryder, Oliver A; Thomas, Steven; Judson, Jessica Martin; Romanov, Michael N; Dandekar, Sugandha; Papp, Jeanette C; Sidak-Loftis, Lindsay C; Walker, Kelli; Stalis, Ilse H; Mace, Michael; Steiner, Cynthia C; Chemnick, Leona G (2021). "Facultative Parthenogenesis in California Condors". Journal of Heredity. 112 (7): 569–574. doi:10.1093/jhered/esab052. PMC 8683835. PMID 34718632. (Advance Access publication, October 28, 2021.)
Kelly, Terra R.; Peter H. Bloom; Stever G. Torres; Yvette Z. Hernandez; Robert H. Poppenga; Walter M. Boyce; Christine K. Johnson (2011). Iwaniuk, Andrew (ed.). "Impact of the California Lead Ammunition Ban of Reducing Lead Exposures in Golden Eagles and Turkey Vultures". PLOS ONE. 6 (4) e17656. Bibcode:2011PLoSO...617656K. doi:10.1371/journal.pone.0017656. PMC 3071804. PMID 21494329.

northcoastjournal.com (Global: low place; English: low place)

Wear, K. (November 9, 2023). "Reclaiming Their Ancestral Lands". North Coast Journal. Retrieved April 4, 2024.

npr.org (Global: 92^nd place; English: 72^nd place)

"Condors are soaring again over Northern California's coastal redwoods". National Public Radio. Associated Press. May 3, 2022. Archived from the original on May 10, 2022. Retrieved May 10, 2022.

nps.gov (Global: 135^th place; English: 105^th place)

"All About Condors". National Park Service - California Condors. Archived from the original on March 13, 2022. Retrieved October 25, 2022.
"California Condor Reintroduction & Recovery". U.S. National Park Service. January 25, 2017. Retrieved April 24, 2024.
"Condor Myths & Facts". U.S. National Park Service. February 22, 2021. Retrieved April 24, 2024.
"California Condor Recovery Program (monthly status report)" (PDF). National Park Service. June 30, 2014. Archived from the original (PDF) on September 3, 2014. Retrieved August 31, 2014.
National Park Service: Zion National Park – Biologists Catch First Glimpse of Condor Chick in Utah , July 15, 2014

nytimes.com (Global: 7^th place; English: 7^th place)

Kopytoff, Verne G. (December 10, 1996). "Majestic Species' Fate May Ride on Wings Of 6 Freed Condors". The New York Times. ISSN 0362-4331. Archived from the original on August 8, 2019. Retrieved August 8, 2019.

oregonlive.com (Global: 886^th place; English: 517^th place)

Muldoon, Katy (May 20, 2012). "California Condors Hit a Milestone – a Population of 405 – after Nearly Going Extinct". The Oregonian. Archived from the original on May 21, 2012. Retrieved May 20, 2012.

psu.edu (Global: 207^th place; English: 136^th place)

citeseerx.ist.psu.edu

Gibb, G. C.; Kardailsky, O.; Kimball, R. T.; Braun, E. L. & Penny, D. (2007). "Mitochondrial genomes and avian phylogeny: complex characters and resolvability without explosive radiations". Molecular Biology and Evolution. 24 (1): 269–280. CiteSeerX 10.1.1.106.1680. doi:10.1093/molbev/msl158. PMID 17062634.

royalsocietypublishing.org (Global: 1,993^rd place; English: 3,231^st place)

rsbl.royalsocietypublishing.org

Ericson, Per G. P.; Anderson, Cajsa L.; Britton, Tom; Elzanowski, Andrzej; Johansson, Ulf S.; Kallersjö, Mari; Ohlson, Jan I.; Parsons, Thomas J.; Zuccon, Dario; Mayr, Gerald (2006). "Diversification of Neoaves: integration of molecular sequence data and fossils" (PDF). Biology Letters. 2 (4): 1–5. doi:10.1098/rsbl.2006.0523. PMC 1834003. PMID 17148284. Archived from the original (PDF) on November 8, 2006. Electronic Supplementary Material Archived August 6, 2017, at the Wayback Machine (PDF)

sandiegozoo.org (Global: 6,965^th place; English: 5,678^th place)

sandiegozoo.org

"San Diego Zoo's Animal Bytes: California Condor". The Zoological Society of San Diego's Center for Conservation and Research for Endangered Species. Archived from the original on August 3, 2003. Retrieved April 18, 2012.
"San Diego Zoo's Animal Bytes: California Condor". Zoological Society of San Diego. Archived from the original on August 3, 2003. Retrieved August 14, 2007.

stories.sandiegozoo.org

San Diego Zoo Wildlife Alliance (October 28, 2021). "San Diego Zoo Wildlife Alliance Conservation Scientists Report First Confirmed Hatchings of Two California Condor Chicks from Unfertilized Eggs". stories.sandiegozoo.org. Archived from the original on October 29, 2021. Retrieved October 30, 2021.

animals.sandiegozoo.org

"California Condor - San Diego Zoo Animals & Plants". animals.sandiegozoo.org. Archived from the original on September 28, 2014. Retrieved June 27, 2018.

sbcondors.com (Global: low place; English: low place)

"FAQ About California Condors". Santa Barbara Zoo. April 15, 2009. Archived from the original on June 13, 2017. Retrieved February 17, 2011.

sciencedaily.com (Global: 993^rd place; English: 920^th place)

"'Condor watch' enlists citizen scientists to help endangered species". ScienceDaily. April 15, 2014. Archived from the original on August 21, 2014. Retrieved August 19, 2014.

sciencenews.org (Global: 3,410^th place; English: 2,939^th place)

milius, susan (June 26, 2012). "Lead poisoning stymies condor recovery". Science News. Archived from the original on September 14, 2022. Retrieved August 24, 2014.

scientificamerican.com (Global: 896^th place; English: 674^th place)

blogs.scientificamerican.com

Platt, John (September 20, 2013). "Banned Pesticide DDT Is Still Killing California Condors". Scientific American. Archived from the original on August 21, 2021. Retrieved September 20, 2013.

semanticscholar.org (Global: 11^th place; English: 8^th place)

api.semanticscholar.org

Rideout, BA; Stalis, I; Papendick, R; Pessier, A; Puschner, B; Finkelstein, ME; Smith, DR; Johnson, M; Mace, M; Stroud, R; Brandt, J; Burnett, J; Parish, C; Petterson, J; Witte, C; Stringfield, C; Orr, K; Zuba, J; Wallace, M; Grantham, J (2012). "Patterns of mortality in free-ranging California Condors (Gymnogyps californianus)". Journal of Wildlife Diseases. 48 (1): 95–112. Bibcode:2012JWDis..48...95R. doi:10.7589/0090-3558-48.1.95. PMID 22247378. S2CID 9680916.
Wallace, William J.; Lathrap, Donald W. (1959). "Ceremonial Bird Burials in San Francisco Bay Shellmounds". American Antiquity. 25 (2): 262–264. doi:10.2307/277447. JSTOR 277447. S2CID 163835230.

sheppardsoftware.com (Global: low place; English: low place)

Sheppard, Brad. "Condors". Sheppard Software. Archived from the original on August 22, 2007. Retrieved August 27, 2007.

sky.com (Global: 431^st place; English: 274^th place)

news.sky.com

"Condors Set Up First Nest In 100 Years". Sky News. March 30, 2006. Archived from the original on December 9, 2008. Retrieved August 14, 2007.

the-scientist.com (Global: 7,827^th place; English: 5,905^th place)

Wilcox, Christie, Flying Solo: Parthenogenesis Discovered in California Condors Archived November 1, 2021, at the Wayback Machine, The Scientist, October 29, 2021

thecalifornian.com (Global: low place; English: low place)

Taylor, Dennis L. (May 8, 2014) "Lead ammo deadly beyond the target" Archived August 26, 2014, at the Wayback Machine The Californian (Salinas, CA)

theecologist.org (Global: low place; English: low place)

Dawn Starin (January 21, 2015). "Condors or lead ammunition? We can't have both". The Ecologist. Archived from the original on September 14, 2022. Retrieved January 26, 2015.

theguardian.com (Global: 12^th place; English: 11^th place)

Murphy Marcos, Coral (July 25, 2024). "'Nature's clean-up crew': record-setting 17 condor chicks hatch at LA Zoo". The Guardian.

time.com (Global: 61^st place; English: 54^th place)

"Lewis & Clark: The Ultimate Adventure: California Condor". Time. July 8, 2002. Archived from the original on October 22, 2010.

times-standard.com (Global: low place; English: low place)

"Humboldt ERFSA learns about California condors". Times Standard. MediaNews Group. March 3, 2024. Retrieved March 6, 2024.

timesheraldonline.com (Global: low place; English: low place)

P. Rogers (June 14, 2014). "First California condor spotted in San Mateo County since 1904". Vallejo Times Herald. Archived from the original on September 3, 2014. Retrieved August 28, 2014.

ucr.edu (Global: 1,553^rd place; English: 1,008^th place)

ucmexus.ucr.edu

"Condors to take flight in Baja Sierras". UCMEXUS (University of California Institute for Mexico and the United States). Spring 2003. Archived from the original on June 22, 2017. Retrieved October 7, 2010.

ucsc.edu (Global: 3,619^th place; English: 2,621^st place)

news.ucsc.edu

Stephens, Tim (April 15, 2014). "'Condor Watch' enlists citizen scientists to help an endangered species". University of California. Archived from the original on September 2, 2014. Retrieved August 21, 2014.

uncw.edu (Global: low place; English: low place)

people.uncw.edu

Suárez, W.; Emslie, S.D. (2003). "New fossil material with a redescription of the extinct condor Gymnogyps varonai (Arredondo, 1971) from the Quaternary of Cuba (Aves: Vulturidae)" (PDF). Proceedings of the Biological Society of Washington. 116 (1): 29–37. Archived (PDF) from the original on January 26, 2021. Retrieved November 10, 2014.

undark.org (Global: low place; English: low place)

Levy, Sharon (June 22, 2022). "How the Yurok Tribe Is Bringing Back the California Condor". Undark Magazine.
Levy, S. (June 22, 2022). "How the Yurok Tribe Is Bringing Back the California Condor". Undark. Retrieved April 3, 2024.

unknown.com (Global: low place; English: low place)

"California condors reach key survival milestone in the wild". Monterey Herald. February 23, 2016. Retrieved July 6, 2020.

unm.edu (Global: 2,007^th place; English: 1,298^th place)

sora.unm.edu

Fisher, Harvey L. (1944). "The skulls of the Cathartid vultures" (PDF). Condor. 46 (6): 272–296. doi:10.2307/1364013. JSTOR 1364013. Archived (PDF) from the original on November 17, 2015. Retrieved February 22, 2013.
Howard, Hildegarde (1947). "A preliminary survey of trends in avian evolution from Pleistocene to recent time" (PDF). Condor. 49 (1): 10–13. doi:10.2307/1364422. JSTOR 1364422. Archived (PDF) from the original on September 25, 2021. Retrieved February 22, 2013.
Howard, Hildegarde (1962). "Bird Remains from a Prehistoric Cave Deposit in Grant County, New Mexico" (PDF). Condor. 64 (3): 241–242. doi:10.2307/1365205. JSTOR 1365205. Archived (PDF) from the original on July 14, 2014. Retrieved February 22, 2013.
Miller, Loye (1960). "Condor Remains from Rampart Cave, Arizona" (PDF). Condor. 62 (1): 65–71. doi:10.2307/1365660. JSTOR 1365660. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Miller, Loye (1931). "The California Condor in Nevada" (PDF). Condor. 33 (1): 29–38. doi:10.2307/1363932. JSTOR 1363932. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander (1931). "The California Condor in New Mexico" (PDF). Condor. 33 (2): 76–77. doi:10.2307/1363313. JSTOR 1363313. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander (1932). "Additional Records of Birds from Cavern Deposits in New Mexico" (PDF). Condor. 34 (3): 141–142. doi:10.2307/1363542. JSTOR 1363542. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander; Friedmann, Herbert (1938). "The California Condor in Texas" (PDF). Condor. 35 (1): 37–38. doi:10.2307/1363462. JSTOR 1363462. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Kiff, L. F.; Peakall, D. B.; Wilbur, S. R. (1979). "Recent Changes in California Condor Eggshells" (PDF). Condor. 81 (2): 166–172. Bibcode:1979Condo..81..166K. doi:10.2307/1367284. JSTOR 1367284. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.

usatoday.com (Global: 41^st place; English: 34^th place)

content.usatoday.com

Weise, Elizabeth (October 7, 2010). "Condor population reaches 100 in California". USA Today. Archived from the original on June 28, 2017. Retrieved October 7, 2010.

usatoday.com

Watkins, Thomas (April 3, 2007). "California Condor lays egg in Mexico". USA Today. Associated Press. Archived from the original on May 26, 2008. Retrieved August 14, 2007.

usrfiles.com (Global: low place; English: low place)

11ae4d20-b6ab-49c3-9b63-36196fc358e7.usrfiles.com

"World CA Condor Update – 2023 Population Status" (PDF). National Park Service. December 31, 2023. Retrieved May 19, 2024.

uu.se (Global: 3,805^th place; English: 3,371^st place)

systbot.uu.se

Ericson, Per G. P.; Anderson, Cajsa L.; Britton, Tom; Elzanowski, Andrzej; Johansson, Ulf S.; Kallersjö, Mari; Ohlson, Jan I.; Parsons, Thomas J.; Zuccon, Dario; Mayr, Gerald (2006). "Diversification of Neoaves: integration of molecular sequence data and fossils" (PDF). Biology Letters. 2 (4): 1–5. doi:10.1098/rsbl.2006.0523. PMC 1834003. PMID 17148284. Archived from the original (PDF) on November 8, 2006. Electronic Supplementary Material Archived August 6, 2017, at the Wayback Machine (PDF)

vcstar.com (Global: 3,992^nd place; English: 2,333^rd place)

Carlson, Cheri (April 24, 2023). "California agencies on high alert after 20 endangered condors die". Ventura County Star. Retrieved April 26, 2023.

ventanaws.org (Global: low place; English: low place)

"Condor Status". Ventana Wildlife Society. Retrieved May 16, 2025.
"California Condors Cool Facts". Ventana Wildlife Society. Archived from the original on July 20, 2008. Retrieved August 14, 2007.
"California Condor Life History". Ventana Wildlife Society. Archived from the original on July 30, 2007. Retrieved August 14, 2007.

visitcalifornia.com (Global: low place; English: low place)

"California Condors and Native American Culture". Visit California. 2023. Retrieved November 8, 2023.

web.archive.org (Global: 1^st place; English: 1^st place)

"Appendices | CITES". cites.org. Archived from the original on February 4, 2010. Retrieved January 14, 2022.
Baird, S. F.; Brewer, T. M.; Ridgway, R. (1874). "Genus Pseudogryphus, Ridgway". A History of North American Birds. Vol. 3. Boston: Little, Brown, and Company. pp. 338–343. Archived from the original on November 7, 2017. Retrieved October 31, 2017.
Shaw, George (1797). "Vultur californianus The Californian Vulture". The Naturalist's Miscellany. Vol. 9. Pl. 301. Archived from the original on November 7, 2017. Retrieved October 31, 2017.
"Once nearly extinct, the California condor nears new milestones". CNN. April 27, 2011. Archived from the original on August 4, 2018. Retrieved April 27, 2011.
"San Diego Zoo's Animal Bytes: California Condor". The Zoological Society of San Diego's Center for Conservation and Research for Endangered Species. Archived from the original on August 3, 2003. Retrieved April 18, 2012.
"Last Wild California Condor Capture for Breeding Program" (PDF). U.S. Fish & Wildlife Service (press release). Archived (PDF) from the original on August 18, 2016. Retrieved May 6, 2009.
Foster, J.W (2024). "Wings of the Spirit: The Place of the California Condor Among Native Peoples of the Californias". California Department of Parks and Recreation. State of California. Archived from the original on September 28, 2025. Retrieved November 18, 2025. It is apparent that California condors held a special place in the lives and ceremonies of California natives.
Remsen, J. V. Jr.; C. D. Cadena; A. Jaramillo; M. Nores; J. F. Pacheco; M. B. Robbins; T. S. Schulenberg; F. G. Stiles; D. F. Stotz & K. J. Zimmer. 2007. A Classification of the Bird Species of South America. Archived March 2, 2009, at the Wayback Machine South American Classification Committee. Retrieved on October 15, 2007
Sibley, Charles G. and Monroe, Burt L. 1990. Distribution and Taxonomy of the Birds of the World Archived July 17, 2021, at the Wayback Machine. Yale University Press. ISBN 0-300-04969-2. Accessed April 11, 2007.
Sibley, Charles G., and Ahlquist, Jon E. 1991. Phylogeny and Classification of Birds: A Study in Molecular Evolution Archived October 13, 2020, at the Wayback Machine. Yale University Press. ISBN 0-300-04085-7. Accessed April 11, 2007.
Ericson, Per G. P.; Anderson, Cajsa L.; Britton, Tom; Elzanowski, Andrzej; Johansson, Ulf S.; Kallersjö, Mari; Ohlson, Jan I.; Parsons, Thomas J.; Zuccon, Dario; Mayr, Gerald (2006). "Diversification of Neoaves: integration of molecular sequence data and fossils" (PDF). Biology Letters. 2 (4): 1–5. doi:10.1098/rsbl.2006.0523. PMC 1834003. PMID 17148284. Archived from the original (PDF) on November 8, 2006. Electronic Supplementary Material Archived August 6, 2017, at the Wayback Machine (PDF)
"AOS Checklist of North and Middle American Birds". Archived from the original on December 7, 2012. Retrieved April 1, 2017.
"The Birds of North America Online: California Condor". Cornell Lab of Ornithology. 2003. Archived from the original on June 18, 2020. Retrieved August 22, 2007.
Suárez, W.; Emslie, S.D. (2003). "New fossil material with a redescription of the extinct condor Gymnogyps varonai (Arredondo, 1971) from the Quaternary of Cuba (Aves: Vulturidae)" (PDF). Proceedings of the Biological Society of Washington. 116 (1): 29–37. Archived (PDF) from the original on January 26, 2021. Retrieved November 10, 2014.
V.J. Syverson (2007). "Evolutionary Patterns in Pleistocene to Recent California Condors". Geological Society of America. 39 (6). Archived from the original on March 3, 2016. Retrieved August 28, 2014.
Fisher, Harvey L. (1944). "The skulls of the Cathartid vultures" (PDF). Condor. 46 (6): 272–296. doi:10.2307/1364013. JSTOR 1364013. Archived (PDF) from the original on November 17, 2015. Retrieved February 22, 2013.
Howard, Hildegarde (1947). "A preliminary survey of trends in avian evolution from Pleistocene to recent time" (PDF). Condor. 49 (1): 10–13. doi:10.2307/1364422. JSTOR 1364422. Archived (PDF) from the original on September 25, 2021. Retrieved February 22, 2013.
Howard, Hildegarde (1962). "Bird Remains from a Prehistoric Cave Deposit in Grant County, New Mexico" (PDF). Condor. 64 (3): 241–242. doi:10.2307/1365205. JSTOR 1365205. Archived (PDF) from the original on July 14, 2014. Retrieved February 22, 2013.
"All About Birds: California Condor". Cornell Lab of Ornithology. 2003. Archived from the original on July 14, 2007. Retrieved August 22, 2007.
BirdLife International (2007) Species factsheet: California Condor Gymnogyps californianus Archived October 13, 2016, at the Wayback Machine. Retrieved August 17, 2007
"All About Condors". National Park Service - California Condors. Archived from the original on March 13, 2022. Retrieved October 25, 2022.
"California Condors Cool Facts". Ventana Wildlife Society. Archived from the original on July 20, 2008. Retrieved August 14, 2007.
Miller, Loye (1960). "Condor Remains from Rampart Cave, Arizona" (PDF). Condor. 62 (1): 65–71. doi:10.2307/1365660. JSTOR 1365660. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Miller, Loye (1931). "The California Condor in Nevada" (PDF). Condor. 33 (1): 29–38. doi:10.2307/1363932. JSTOR 1363932. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander (1931). "The California Condor in New Mexico" (PDF). Condor. 33 (2): 76–77. doi:10.2307/1363313. JSTOR 1363313. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander (1932). "Additional Records of Birds from Cavern Deposits in New Mexico" (PDF). Condor. 34 (3): 141–142. doi:10.2307/1363542. JSTOR 1363542. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Wetmore, Alexander; Friedmann, Herbert (1938). "The California Condor in Texas" (PDF). Condor. 35 (1): 37–38. doi:10.2307/1363462. JSTOR 1363462. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Majors, Harry M. (1975). Exploring Washington. Van Winkle Publishing Co. p. 114. ISBN 978-0-918664-00-6. Archived from the original on January 2, 2020. Retrieved October 23, 2015.
"Lewis & Clark: The Ultimate Adventure: California Condor". Time. July 8, 2002. Archived from the original on October 22, 2010.
"California condor, (Gymnogyps californianus)". U.S. Fish and Wildlife Service. Archived from the original on April 1, 2013. Retrieved August 14, 2007.
"San Diego Zoo's Animal Bytes: California Condor". Zoological Society of San Diego. Archived from the original on August 3, 2003. Retrieved August 14, 2007.
"California Condor Behavior". U.S. Fish and Wildlife Service, Hopper Mountain National Wildlife Refuge. Archived from the original on April 16, 2007. Retrieved August 22, 2007.
Bittel, Jason (October 28, 2021). "Endangered birds experience 'virgin birth,' a first for the species". National Geographic. Archived from the original on February 7, 2022. Retrieved October 30, 2021.
San Diego Zoo Wildlife Alliance (October 28, 2021). "San Diego Zoo Wildlife Alliance Conservation Scientists Report First Confirmed Hatchings of Two California Condor Chicks from Unfertilized Eggs". stories.sandiegozoo.org. Archived from the original on October 29, 2021. Retrieved October 30, 2021.
Wilcox, Christie, Flying Solo: Parthenogenesis Discovered in California Condors Archived November 1, 2021, at the Wayback Machine, The Scientist, October 29, 2021
"California Condor Life History". Ventana Wildlife Society. Archived from the original on July 30, 2007. Retrieved August 14, 2007.
"Gymnogyps californianus (California condor)". Animal Diversity Web. Archived from the original on August 12, 2022. Retrieved August 12, 2022.
"Frequently Asked Questions". U.S. Fish and Wildlife Service, Hopper Mountain National Wildlife Refuge. Archived from the original on August 8, 2007. Retrieved August 23, 2007.
"California Condor - San Diego Zoo Animals & Plants". animals.sandiegozoo.org. Archived from the original on September 28, 2014. Retrieved June 27, 2018.
"This Bird Lives Because She Never Quit". Audubon. September 29, 2020. Archived from the original on June 2, 2021. Retrieved June 1, 2021.
Reyes-Velarde, Alejandra (May 14, 2019). "These condor chicks have a better chance in the wild, thanks to the L.A. Zoo". Los Angeles Times. Archived from the original on May 14, 2019. Retrieved May 14, 2019.
Kapnik, Alyssa. "Program To Save The California Condor From Extinction Is Making Strides". KALW. Archived from the original on August 7, 2019. Retrieved August 7, 2019.
Kopytoff, Verne G. (December 10, 1996). "Majestic Species' Fate May Ride on Wings Of 6 Freed Condors". The New York Times. ISSN 0362-4331. Archived from the original on August 8, 2019. Retrieved August 8, 2019.
Weise, Elizabeth (October 7, 2010). "Condor population reaches 100 in California". USA Today. Archived from the original on June 28, 2017. Retrieved October 7, 2010.
Dawn Starin (January 21, 2015). "Condors or lead ammunition? We can't have both". The Ecologist. Archived from the original on September 14, 2022. Retrieved January 26, 2015.
Church, ME; Gwiazda, R; Risebrough, RW; Sorenson, K; Chamberlain, CP; Farry, S; Heinrich, W; Rideout, BA; Smith, DR (2006). "Ammunition is the Principal Source of Lead Accumulated by California Condors Re-Introduced to the Wild". Environmental Science & Technology. 40 (19): 6143–50. Bibcode:2006EnST...40.6143C. doi:10.1021/es060765s. PMID 17051813. Archived from the original on August 23, 2020. Retrieved June 29, 2019.
Kiff, L. F.; Peakall, D. B.; Wilbur, S. R. (1979). "Recent Changes in California Condor Eggshells" (PDF). Condor. 81 (2): 166–172. Bibcode:1979Condo..81..166K. doi:10.2307/1367284. JSTOR 1367284. Archived (PDF) from the original on November 19, 2015. Retrieved February 22, 2013.
Platt, John (September 20, 2013). "Banned Pesticide DDT Is Still Killing California Condors". Scientific American. Archived from the original on August 21, 2021. Retrieved September 20, 2013.
milius, susan (June 26, 2012). "Lead poisoning stymies condor recovery". Science News. Archived from the original on September 14, 2022. Retrieved August 24, 2014.
"Assembly Bill No. 821" (PDF). CA State Senate. Archived from the original (PDF) on September 10, 2008. Retrieved July 3, 2008.
Taylor, Dennis L. (May 8, 2014) "Lead ammo deadly beyond the target" Archived August 26, 2014, at the Wayback Machine The Californian (Salinas, CA)
Zhang, Sarah (January 3, 2013). "How Dangerous Is the Lead in Bullets?". Mother Jones. Archived from the original on June 21, 2019. Retrieved January 8, 2020. The most direct solution is switching to lead-free ammunition or at least jacketed bullets, which have a lead core covered with a coating made of copper or nylon. Lead has been traditionally favored because of its density, but the military has since developed lead-free ammunition that reportedly works just as well.
"California Condor Recovery Program". U.S. Fish and Wildlife Service, Hopper Mountain National Wildlife Refuge. December 2006. Archived from the original on September 11, 2007. Retrieved September 13, 2007.
Sheppard, Brad. "Condors". Sheppard Software. Archived from the original on August 22, 2007. Retrieved August 27, 2007.
"Condors Set Up First Nest In 100 Years". Sky News. March 30, 2006. Archived from the original on December 9, 2008. Retrieved August 14, 2007.
Muldoon, Katy (May 20, 2012). "California Condors Hit a Milestone – a Population of 405 – after Nearly Going Extinct". The Oregonian. Archived from the original on May 21, 2012. Retrieved May 20, 2012.
"California Condor Recovery Program (monthly status report)" (PDF). National Park Service. June 30, 2014. Archived from the original (PDF) on September 3, 2014. Retrieved August 31, 2014.
"California Condor Recovery Program". U.S. Fish & Wildlife Service U.S. Fish & Wildlife Service. Archived from the original on August 27, 2016. Retrieved July 11, 2017.
"Condors to take flight in Baja Sierras". UCMEXUS (University of California Institute for Mexico and the United States). Spring 2003. Archived from the original on June 22, 2017. Retrieved October 7, 2010.
"FAQ About California Condors". Santa Barbara Zoo. April 15, 2009. Archived from the original on June 13, 2017. Retrieved February 17, 2011.
Watkins, Thomas (April 3, 2007). "California Condor lays egg in Mexico". USA Today. Associated Press. Archived from the original on May 26, 2008. Retrieved August 14, 2007.
"Polluelos de cóndor de California inician el 'vuelo' hacia su liberación" (in Spanish). June 27, 2016. Archived from the original on September 14, 2022. Retrieved June 26, 2016.
Galindo, Yadira (June 18, 2009). "Condor Chick Hatches in Mexican Wilderness". California Condor Conservation. Archived from the original on February 4, 2011. Retrieved March 1, 2011.
P. Rogers (June 14, 2014). "First California condor spotted in San Mateo County since 1904". Vallejo Times Herald. Archived from the original on September 3, 2014. Retrieved August 28, 2014.
Banks, Alicia (June 16, 2014) "Condor spotted in San Mateo County is first in 110 years" Archived June 20, 2014, at the Wayback Machine Los Angeles Times
Andrew, Scottie; Ries, Brian (July 22, 2019). "The 1,000th California condor has hatched in a victory for the species that nearly went extinct". CNN. Archived from the original on July 28, 2019. Retrieved July 28, 2019.
"California condors seen in Sequoia after nearly 50 years". AP NEWS. July 7, 2020. Archived from the original on September 14, 2022. Retrieved July 9, 2020.
"Condors are soaring again over Northern California's coastal redwoods". National Public Radio. Associated Press. May 3, 2022. Archived from the original on May 10, 2022. Retrieved May 10, 2022.
"Condor Watch Archived". Zooniverse. Archived from the original on May 5, 2020. Retrieved February 13, 2020.
Stephens, Tim (April 15, 2014). "'Condor Watch' enlists citizen scientists to help an endangered species". University of California. Archived from the original on September 2, 2014. Retrieved August 21, 2014.
"'Condor watch' enlists citizen scientists to help endangered species". ScienceDaily. April 15, 2014. Archived from the original on August 21, 2014. Retrieved August 19, 2014.
Wilbur, S. (2021). "Condors and Indians". Symbios Books. Archived from the original on April 21, 2024. Retrieved November 18, 2025.

worldcat.org (Global: 5^th place; English: 5^th place)

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Kopytoff, Verne G. (December 10, 1996). "Majestic Species' Fate May Ride on Wings Of 6 Freed Condors". The New York Times. ISSN 0362-4331. Archived from the original on August 8, 2019. Retrieved August 8, 2019.

youtube.com (Global: 9^th place; English: 13^th place)

"Golden Eagle Swoops on Condor Chick with Condor Parents in Hot Pursuit: October 11, 2022". Cornell Lab Bird Cams. Cornell Lab of Ornithology. October 11, 2022. Retrieved April 24, 2024.

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