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Yellow Headed Blackbird
Xanthocephalus xanthocephalus (Bonaparte 1826)
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n58_w1150
cc-publicdomain
Biodiversity Heritage Library
Flickr BHL
Portraits and habits of our birds v.2. New York city :National association of Audubon societies,1920-
biodiversitylibrary.org/page/19906145
n196_w1150
cc-publicdomain
Biodiversity Heritage Library
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Birds of the Pacific coast New York,G. P. Putnam's sons,1923.
biodiversitylibrary.org/page/7554605
n34_w1150
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The birds of America :. New York :J.B. Chevalier,1840-1844..
biodiversitylibrary.org/page/40446916
n216_w1150
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Biodiversity Heritage Library
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American ornithology; or, The natural history of the birds of the United States,. London,Cassell, Petter & Galpin[187-].
biodiversitylibrary.org/page/41423857