Robuta

https://www.audubon.org/art/birds-america/yellow-red-poll-warbler

Yellow Red-poll Warbler | John James Audubon's Birds of America

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https://en.wikisource.org/wiki/Ornithological_Biography/Volume_1/Yellow-breasted_Warbler

Ornithological Biography/Volume 1/Yellow-breasted Warbler - Wikisource, the free online library

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https://www.allaboutbirds.org/guide/Yellow-rumped_Warbler/overview

Yellow-rumped Warbler Overview, All About Birds, Cornell Lab of Ornithology

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https://www.audubon.org/news/yellow-warbler-creative-art-works

Yellow Warbler by Creative Art Works | Audubon

Location: Montefiore Square, 138th Street and Broadway, New York, NY 10031

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https://www.liveauctioneers.com/price-result/audubon-aquatint-black-and-yellow-warbler/

Audubon Aquatint, Black & Yellow Warbler

*** START PRICE IS THE RESERVE *** AUDUBON, John James (1785 - 1851). Black & Yellow Warbler, Plate 123. Aquatint engra

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https://www.allaboutbirds.org/guide/Mangrove_Yellow_Warbler/overview

Mangrove Yellow Warbler Overview, All About Birds, Cornell Lab of Ornithology

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https://www.allaboutbirds.org/guide/Northern_Yellow_Warbler/overview

Northern Yellow Warbler Overview, All About Birds, Cornell Lab of Ornithology

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https://www.ebsco.com/research-starters/zoology/yellow-warbler

Yellow warbler | Zoology | Research Starters | EBSCO Research

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https://www.sciencedaily.com/releases/2017/11/171108102224.htm

A warbler's flashy yellow throat? There are genes for that | ScienceDaily

Birds get their bright red, orange and yellow plumage from carotenoid pigments -- responsible for many of the same bright colors in plants. But how songbirds...

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https://www.fws.gov/media/yellow-warbler-nest-eggs

Yellow warbler nest with eggs | FWS.gov

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