Blue jay (English Wikipedia)

"Animal facts: Blue Jay". Canadian Geographic. The Royal Canadian Geographical Society. July 26, 2006. Archived from the original on February 4, 2019. Retrieved February 3, 2019.

cornell.edu (Global: 308^th place; English: 253^rd place)

birds.cornell.edu

Blue Jay. birds.cornell.edu

discovermagazine.com (Global: 3,982^nd place; English: 2,975^th place)

"The blue jays are coming! Hide yo kids, hide yo nuts!". Discover Magazine. May 7, 2014. Retrieved October 20, 2025.

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

BirdLife International (2025). "Cyanocitta cristata". IUCN Red List of Threatened Species. 2025 e.T22705611A137739324. doi:10.2305/IUCN.UK.2025-2.RLTS.T22705611A137739324.en.
Fisk, E.J. (1979). "Fall and winter birds near Homestead, Florida". Bird-Banding. 50 (3): 224–303. doi:10.2307/4512458. JSTOR 4512458.
Rhymer, Judith M.; Simberloff, Daniel (1996). "Extinction by hybridization and introgression". Annu. Rev. Ecol. Syst. 27 (1): 83–109. Bibcode:1996AnRES..27...83R. doi:10.1146/annurev.ecolsys.27.1.83.
Smith GH (1978). "Range Extension of the Blue Jay into Western North America" (PDF). Bird-Banding. 49 (3): 208–214. doi:10.2307/4512360. JSTOR 4512360.
Livezey, KB (2009). "Range expansion of Barred Owls, part I: chronology and distribution". American Midland Naturalist. 161: 49–56. doi:10.1674/0003-0031-161.1.49. S2CID 86276981.
Livezey, KB (2009b). "Range expansion of Barred Owls, part 2: facilitating ecological changes". American Midland Naturalist. 161 (2): 323–349. doi:10.1674/0003-0031-161.2.323. S2CID 84426970.
Livezey KB (2010). "Killing Barred Owls to Help Spotted Owls II: Implications for Many Other Range-Expanding Species". Northwestern Naturalist. 91 (3): 251–270. doi:10.1898/NWN09-38.1. JSTOR 40983223. S2CID 85425945.
Oberholser, Harry C. (1921). "The geographic races of Cyanocitta cristata" (PDF). The Auk. 38: 83–89. doi:10.2307/4074029. JSTOR 4074029. Retrieved October 25, 2024.
Sutton, George Miksch (1935). "A new Blue Jay from the western border of the Great Basin" (PDF). The Auk. 52: 176–177. doi:10.2307/4077201. JSTOR 4077201. Retrieved October 25, 2024.
Todd, W. E. Clyde (1928). "A new Blue Jay from Southern Florida" (PDF). The Auk. 45: 364–365. doi:10.2307/4076032. JSTOR 4076032. Retrieved October 25, 2024.
Clay, William M. (1959). "Blue Jays Attack a Red Bat" (PDF). The Auk. 76 (4): 532. doi:10.2307/4082327. JSTOR 4082327.
Jones, Thony B.; Kamil, Alan C. (1973). "Tool-Making and Tool-Using in the Northern Blue Jay". Science. 180 (4090): 1076–1078. Bibcode:1973Sci...180.1076J. doi:10.1126/science.180.4090.1076. PMID 17806587. S2CID 22011846.
Cash, Lee C.; Tarvin, Keith A. (2025). "Tool use by a wild Blue Jay ( Cyanocitta cristata )". The Wilson Journal of Ornithology. 137 (2): 276–283. doi:10.1080/15594491.2025.2464378.

ffdp.ca (Global: low place; English: low place)

"Blue Jay". Canadian Wildlife Service. Archived from the original on February 4, 2009. Retrieved August 9, 2009.

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

"The Truth About Blue Jays – The Free Weekly". March 30, 2016. Retrieved September 8, 2019.

g6consulting.ca (Global: low place; English: low place)

"Blue jays love peanuts in the shell".

iucnredlist.org (Global: 39^th place; English: 71^st place)

BirdLife International (2025). "Cyanocitta cristata". IUCN Red List of Threatened Species. 2025 e.T22705611A137739324. doi:10.2305/IUCN.UK.2025-2.RLTS.T22705611A137739324.en.

jstor.org (Global: 23^rd place; English: 15^th place)

Fisk, E.J. (1979). "Fall and winter birds near Homestead, Florida". Bird-Banding. 50 (3): 224–303. doi:10.2307/4512458. JSTOR 4512458.
Smith GH (1978). "Range Extension of the Blue Jay into Western North America" (PDF). Bird-Banding. 49 (3): 208–214. doi:10.2307/4512360. JSTOR 4512360.
Livezey KB (2010). "Killing Barred Owls to Help Spotted Owls II: Implications for Many Other Range-Expanding Species". Northwestern Naturalist. 91 (3): 251–270. doi:10.1898/NWN09-38.1. JSTOR 40983223. S2CID 85425945.
Oberholser, Harry C. (1921). "The geographic races of Cyanocitta cristata" (PDF). The Auk. 38: 83–89. doi:10.2307/4074029. JSTOR 4074029. Retrieved October 25, 2024.
Sutton, George Miksch (1935). "A new Blue Jay from the western border of the Great Basin" (PDF). The Auk. 52: 176–177. doi:10.2307/4077201. JSTOR 4077201. Retrieved October 25, 2024.
Todd, W. E. Clyde (1928). "A new Blue Jay from Southern Florida" (PDF). The Auk. 45: 364–365. doi:10.2307/4076032. JSTOR 4076032. Retrieved October 25, 2024.
Clay, William M. (1959). "Blue Jays Attack a Red Bat" (PDF). The Auk. 76 (4): 532. doi:10.2307/4082327. JSTOR 4082327.

msstate.edu (Global: 4,494^th place; English: 2,291^st place)

extension.msstate.edu

Parker, Michaela. "Bird of the Month: Blue Jay". Mississippi State University Extension. Retrieved October 22, 2025.

nih.gov (Global: 5^th place; English: 5^th place)

pubmed.ncbi.nlm.nih.gov

Jones, Thony B.; Kamil, Alan C. (1973). "Tool-Making and Tool-Using in the Northern Blue Jay". Science. 180 (4090): 1076–1078. Bibcode:1973Sci...180.1076J. doi:10.1126/science.180.4090.1076. PMID 17806587. S2CID 22011846.

oiseaux.net (Global: 7,576^th place; English: low place)

"Blue Jay". oiseaux.net. 2007. Archived from the original on May 2, 2007.

princeedwardisland.ca (Global: low place; English: low place)

"Provincial Bird". Prince Edward Island. May 26, 2015. Retrieved February 1, 2024.

semanticscholar.org (Global: 15^th place; English: 8^th place)

api.semanticscholar.org

Livezey, KB (2009). "Range expansion of Barred Owls, part I: chronology and distribution". American Midland Naturalist. 161: 49–56. doi:10.1674/0003-0031-161.1.49. S2CID 86276981.
Livezey, KB (2009b). "Range expansion of Barred Owls, part 2: facilitating ecological changes". American Midland Naturalist. 161 (2): 323–349. doi:10.1674/0003-0031-161.2.323. S2CID 84426970.
Livezey KB (2010). "Killing Barred Owls to Help Spotted Owls II: Implications for Many Other Range-Expanding Species". Northwestern Naturalist. 91 (3): 251–270. doi:10.1898/NWN09-38.1. JSTOR 40983223. S2CID 85425945.
Jones, Thony B.; Kamil, Alan C. (1973). "Tool-Making and Tool-Using in the Northern Blue Jay". Science. 180 (4090): 1076–1078. Bibcode:1973Sci...180.1076J. doi:10.1126/science.180.4090.1076. PMID 17806587. S2CID 22011846.

smithsonianmag.com (Global: 663^rd place; English: 431^st place)

Bassi, Margherita. "Strange Bird Spotted in a Texas Backyard Is the First Known Hybrid Between a Blue Jay and a Green Jay". Smithsonian Magazine. Retrieved December 25, 2025.

state.tx.us (Global: 1,282^nd place; English: 574^th place)

tpwd.state.tx.us

Animal Speeds. Texas Parks & Wildlife. Retrieved July 1, 2008.

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

"Bird of the Week: Blue Jay". Travis Audubon. July 17, 2024. Retrieved October 21, 2025.

tumblr.com (Global: 1,119^th place; English: 796^th place)

db89.tumblr.com

"American Rivers". Archived from the original on December 18, 2013.

umich.edu (Global: 429^th place; English: 307^th place)

animaldiversity.ummz.umich.edu

"ADW: Cyanocitta cristata: INFORMATION". Animal Diversity Web.
"ADW: Cyanocitta cristata: INFORMATION". Animal Diversity Web.

unc.edu (Global: 1,577^th place; English: 913^th place)

dc.lib.unc.edu

Catesby, Mark (1731). Natural History of Carolina, Florida, and the Bahamas (1st ed.). London: Royal Society House. p. 87.

unl.edu (Global: 1,697^th place; English: 926^th place)

digitalcommons.unl.edu

Jones, Thony B.; Kamil, Alan C. (1973). "Tool-Making and Tool-Using in the Northern Blue Jay". Science. 180 (4090): 1076–1078. Bibcode:1973Sci...180.1076J. doi:10.1126/science.180.4090.1076. PMID 17806587. S2CID 22011846.

unm.edu (Global: 1,919^th place; English: 1,213^th place)

sora.unm.edu

Smith GH (1978). "Range Extension of the Blue Jay into Western North America" (PDF). Bird-Banding. 49 (3): 208–214. doi:10.2307/4512360. JSTOR 4512360.
Henninger, W. F. (1906). "A preliminary list of the birds of Seneca County, Ohio" (PDF). Wilson Bulletin. 18 (2): 47–60.
Oberholser, Harry C. (1921). "The geographic races of Cyanocitta cristata" (PDF). The Auk. 38: 83–89. doi:10.2307/4074029. JSTOR 4074029. Retrieved October 25, 2024.
Sutton, George Miksch (1935). "A new Blue Jay from the western border of the Great Basin" (PDF). The Auk. 52: 176–177. doi:10.2307/4077201. JSTOR 4077201. Retrieved October 25, 2024.
Todd, W. E. Clyde (1928). "A new Blue Jay from Southern Florida" (PDF). The Auk. 45: 364–365. doi:10.2307/4076032. JSTOR 4076032. Retrieved October 25, 2024.
Clay, William M. (1959). "Blue Jays Attack a Red Bat" (PDF). The Auk. 76 (4): 532. doi:10.2307/4082327. JSTOR 4082327.

usf.edu (Global: 3,578^th place; English: 2,097^th place)

digitalcommons.usf.edu

James, Ross D. (1988). "Blue Jays Mimic the Calls of Red-shouldered and Broad-winged Hawks". Ontario Birds. 6 (1) 2: 11–14.

usgs.gov (Global: 119^th place; English: 145^th place)

mbr-pwrc.usgs.gov

"Blue Jay Cyanocitta cristata BBS Trend Map, 1966 - 2015". USGS. U.S. Department of the Interior. Retrieved December 9, 2020.

pwrc.usgs.gov

"Longevity Records Of North American Birds". U. S. Geological Survey: Bird Banding Laboratory. Retrieved December 24, 2012.

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

"Blue Jay". Canadian Wildlife Service. Archived from the original on February 4, 2009. Retrieved August 9, 2009.
Carpenter, Anita (February 2003). "What Color is a Bluejay?". Wisconsin Natural Resources Magazine. Archived from the original on July 31, 2018. Retrieved October 21, 2012.
"Blue Jay". oiseaux.net. 2007. Archived from the original on May 2, 2007.
"American Rivers". Archived from the original on December 18, 2013.
"Animal facts: Blue Jay". Canadian Geographic. The Royal Canadian Geographical Society. July 26, 2006. Archived from the original on February 4, 2019. Retrieved February 3, 2019.

wi.gov (Global: 4,974^th place; English: 2,357^th place)

dnr.wi.gov

Carpenter, Anita (February 2003). "What Color is a Bluejay?". Wisconsin Natural Resources Magazine. Archived from the original on July 31, 2018. Retrieved October 21, 2012.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Coues, Elliot (1890). Key to North American birds (5th ed.). Boston, MA: Estes and Lauriat. p. 326. OCLC 469020022.

Blue jay (English Wikipedia)

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