American black duck (English Wikipedia)

Rhymer, Judith M. (2006). "Extinction by hybridization and introgression in anatine ducks". Acta Zoologica Sinica. 52 (Supplement): 583–585. Archived from the original (PDF) on 2013-12-03.

allaboutbirds.org (Global: 6,096^th place; English: 3,562^nd place)

"American Black Duck". www.allaboutbirds.org. 2011. Archived from the original on 2017-02-17. Retrieved 2017-06-29.
"American Black Duck". The Cornell Lab - All About Birds. Retrieved 20 December 2019.

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

Wintersteen, Kyle (2013-03-01). "Black Ducks in Peril". American Hunter. Archived from the original on 2016-03-26. Retrieved 2013-03-02.

archive.org (Global: 6^th place; English: 6^th place)

Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. Christopher Helm. pp. 46, 340. ISBN 978-1-4081-2501-4.

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

Brewster, William (1902). "An undescribed form of the black duck (Anas obscura)". The Auk. 19 (2). American Ornithologists Union: 183–188. doi:10.2307/4069311. ISSN 0004-8038. JSTOR 4069311 – via Biodiversity Heritage Library.

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

Jerry R., Longcore; McAuley, Daniel G.; Hepp, Gary R.; Rhymer, Judith M. (2020). "American Black Duck (Anas rubripes)". In Poole, Alan F; Gill, Frank B (eds.). American Black Duck: Anas rubripes. doi:10.2173/bow.ambduc.01. Archived from the original on 2016-03-25. Retrieved 2017-06-30.

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

Smith, Christopher (2000). Field Guide to Upland Birds and Waterfowl. Wilderness Adventures Press. p. 60. ISBN 978-1-885106-20-9.
Kear, Janet (2005). Ducks, Geese and Swans: Species accounts (Cairina to Mergus). Oxford University Press. p. 509. ISBN 978-0-19-861009-0.
Potter, Eloise F.; Parnell, James F.; Teulings, Robert P.; Davis, Ricky (2015). Birds of the Carolinas. The University of North Carolina Press. p. 47. ISBN 978-1-4696-2565-2.
Dunn, Jon Lloyd; Alderfer, Jonathan K. (2006). National Geographic Field Guide to the Birds of North America. National Geographic Books. p. 30. ISBN 978-0-7922-5314-3.
Ryan, James M. (2009). Adirondack Wildlife: A Field Guide. University Press of New England. p. 118. ISBN 978-1-58465-749-1.
Beaman, Mark; Madge, Steve (2010). The Handbook of Bird Identification: For Europe and the Western Palearctic. A&C Black. p. 163. ISBN 978-1-4081-3523-5.
Wells, Jeffrey V. (2010). Birder's Conservation Handbook: 100 North American Birds at Risk. Princeton University Press. pp. 56–57. ISBN 978-1-4008-3151-7.
U.S. Department of the Interior, National Park Service (2007). Cape Cod National Seashore (N.S.), Hunting Program: Environmental Impact Statement. pp. 83–84.
Roman, Charles T. (2012). Tidal Marsh Restoration: A Synthesis of Science and Management. Island Press. p. 132. ISBN 978-1-61091-229-7.
Eastman, John Andrew (1999). Birds of Lake, Pond, and Marsh: Water and Wetland Birds of Eastern North America. Stackpole Books. pp. 57–58. ISBN 978-0-8117-2681-8.
Maehr, David S.; Kale II, Herbert W. (2005). Florida's Birds: A Field Guide and Reference. Pineapple Press Inc. p. 56. ISBN 978-1-56164-335-6.
Baldassarre, Guy A. (2014). Ducks, Geese, and Swans of North America. Johns Hopkins University Press. pp. 353–356. ISBN 978-1-4214-0751-7.
Evans, Lee G. R. (1994). Rare Birds in Britain 1800-1990. LGRE Productions Incorporated. pp. 13–14. ISBN 978-1-898918-00-4.
Schwartz, Nancy A. (2010). Wildlife Rehabilitation: Basic Life Support. Xlibris Corporation. ISBN 978-1-4535-3192-1.
Armistead, George L.; Sullivan, Brian L. (2015). Better Birding: Tips, Tools, and Concepts for the Field. Princeton University Press. p. 13. ISBN 978-0-691-12966-2.
Anonymous (2007). Lake Umbagog National Wildlife Refuge (N.W.R.), Conservation Plan: Environmental Impact Statement. pp. 142–143.
Ashton, Mike (2014). Domestic Duck. Crowood Press. p. 7. ISBN 978-1-84797-970-4.
Newton, Ian (2003). Speciation and Biogeography of Birds. Academic Press. p. 417. ISBN 978-0-08-092499-1.

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

BirdLife International (2021). "Anas rubripes". IUCN Red List of Threatened Species. 2021 e.T22680174A137023072. doi:10.2305/IUCN.UK.2021-3.RLTS.T22680174A137023072.en. Retrieved 13 July 2022.
Brewster, William (1902). "An undescribed form of the black duck (Anas obscura)". The Auk. 19 (2). American Ornithologists Union: 183–188. doi:10.2307/4069311. ISSN 0004-8038. JSTOR 4069311 – via Biodiversity Heritage Library.
Jerry R., Longcore; McAuley, Daniel G.; Hepp, Gary R.; Rhymer, Judith M. (2020). "American Black Duck (Anas rubripes)". In Poole, Alan F; Gill, Frank B (eds.). American Black Duck: Anas rubripes. doi:10.2173/bow.ambduc.01. Archived from the original on 2016-03-25. Retrieved 2017-06-30.
Mank, Judith E.; Carlson, John E.; Brittingham, Margaret C. (2004). "A century of hybridization: Decreasing genetic distance between American black ducks and mallards". Conservation Genetics. 5 (3): 395–403. Bibcode:2004ConG....5..395M. doi:10.1023/B:COGE.0000031139.55389.b1. S2CID 24144598.
Johnsgard, Paul A. (1967). "Sympatry Changes and Hybridization Incidence in Mallards and Black Ducks". American Midland Naturalist. 77 (1): 51–63. doi:10.2307/2423425. JSTOR 2423425.
Avise, John C.; Ankney, C. Davison; Nelson, William S. (1990). "Mitochondrial Gene Trees and the Evolutionary Relationship of Mallard and Black Ducks". Evolution. 44 (4): 1109–1119. doi:10.2307/2409570. JSTOR 2409570. PMID 28569026.
Kirby, Ronald E.; Sargeant, Glen A.; Shutler, Dave (2004). "Haldane's rule and American black duck × mallard hybridization". Canadian Journal of Zoology. 82 (11): 1827–1831. doi:10.1139/z04-169.
Rhymer, Judith M.; Simberloff, Daniel (1996). "Extinction by hybridization and introgression". Annu. Rev. Ecol. Syst. 27: 83–109. doi:10.1146/annurev.ecolsys.27.1.83.

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

Avise, John C.; Ankney, C. Davison; Nelson, William S. (1990). "Mitochondrial Gene Trees and the Evolutionary Relationship of Mallard and Black Ducks". Evolution. 44 (4): 1109–1119. doi:10.2307/2409570. JSTOR 2409570. PMID 28569026.

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

ui.adsabs.harvard.edu

Mank, Judith E.; Carlson, John E.; Brittingham, Margaret C. (2004). "A century of hybridization: Decreasing genetic distance between American black ducks and mallards". Conservation Genetics. 5 (3): 395–403. Bibcode:2004ConG....5..395M. doi:10.1023/B:COGE.0000031139.55389.b1. S2CID 24144598.

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

BirdLife International (2021). "Anas rubripes". IUCN Red List of Threatened Species. 2021 e.T22680174A137023072. doi:10.2305/IUCN.UK.2021-3.RLTS.T22680174A137023072.en. Retrieved 13 July 2022.

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

Brewster, William (1902). "An undescribed form of the black duck (Anas obscura)". The Auk. 19 (2). American Ornithologists Union: 183–188. doi:10.2307/4069311. ISSN 0004-8038. JSTOR 4069311 – via Biodiversity Heritage Library.
Johnsgard, Paul A. (1967). "Sympatry Changes and Hybridization Incidence in Mallards and Black Ducks". American Midland Naturalist. 77 (1): 51–63. doi:10.2307/2423425. JSTOR 2423425.
Avise, John C.; Ankney, C. Davison; Nelson, William S. (1990). "Mitochondrial Gene Trees and the Evolutionary Relationship of Mallard and Black Ducks". Evolution. 44 (4): 1109–1119. doi:10.2307/2409570. JSTOR 2409570. PMID 28569026.

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

pubmed.ncbi.nlm.nih.gov

Avise, John C.; Ankney, C. Davison; Nelson, William S. (1990). "Mitochondrial Gene Trees and the Evolutionary Relationship of Mallard and Black Ducks". Evolution. 44 (4): 1109–1119. doi:10.2307/2409570. JSTOR 2409570. PMID 28569026.

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

api.semanticscholar.org

Mank, Judith E.; Carlson, John E.; Brittingham, Margaret C. (2004). "A century of hybridization: Decreasing genetic distance between American black ducks and mallards". Conservation Genetics. 5 (3): 395–403. Bibcode:2004ConG....5..395M. doi:10.1023/B:COGE.0000031139.55389.b1. S2CID 24144598.

unl.edu (Global: 1,708^th place; English: 1,051^st place)

digitalcommons.unl.edu

Johnsgard, Paul A. (1967). "Sympatry Changes and Hybridization Incidence in Mallards and Black Ducks". American Midland Naturalist. 77 (1): 51–63. doi:10.2307/2423425. JSTOR 2423425.

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

"American Black Duck". www.allaboutbirds.org. 2011. Archived from the original on 2017-02-17. Retrieved 2017-06-29.
Jerry R., Longcore; McAuley, Daniel G.; Hepp, Gary R.; Rhymer, Judith M. (2020). "American Black Duck (Anas rubripes)". In Poole, Alan F; Gill, Frank B (eds.). American Black Duck: Anas rubripes. doi:10.2173/bow.ambduc.01. Archived from the original on 2016-03-25. Retrieved 2017-06-30.
Rhymer, Judith M. (2006). "Extinction by hybridization and introgression in anatine ducks". Acta Zoologica Sinica. 52 (Supplement): 583–585. Archived from the original (PDF) on 2013-12-03.
Wintersteen, Kyle (2013-03-01). "Black Ducks in Peril". American Hunter. Archived from the original on 2016-03-26. Retrieved 2013-03-02.

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

search.worldcat.org

Brewster, William (1902). "An undescribed form of the black duck (Anas obscura)". The Auk. 19 (2). American Ornithologists Union: 183–188. doi:10.2307/4069311. ISSN 0004-8038. JSTOR 4069311 – via Biodiversity Heritage Library.

zenodo.org (Global: 621^st place; English: 380^th place)

Kirby, Ronald E.; Sargeant, Glen A.; Shutler, Dave (2004). "Haldane's rule and American black duck × mallard hybridization". Canadian Journal of Zoology. 82 (11): 1827–1831. doi:10.1139/z04-169.

American black duck (English Wikipedia)

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

allaboutbirds.org (Global: 6,096th place; English: 3,562nd place)

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

archive.org (Global: 6th place; English: 6th place)

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

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

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

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

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

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

ui.adsabs.harvard.edu

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

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

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

pubmed.ncbi.nlm.nih.gov

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

api.semanticscholar.org

unl.edu (Global: 1,708th place; English: 1,051st place)

digitalcommons.unl.edu

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

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

search.worldcat.org

zenodo.org (Global: 621st place; English: 380th place)

allaboutbirds.org (Global: 6,096^th place; English: 3,562^nd place)

archive.org (Global: 6^th place; English: 6^th place)

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

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

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

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

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

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

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

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

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

unl.edu (Global: 1,708^th place; English: 1,051^st place)

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

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

zenodo.org (Global: 621^st place; English: 380^th place)