Yellow-throated Sericornis (Sericornis citreogularis) illustrated by Elizabeth Gould (1804–1841) for John… https://www.rawpixel.com/image/321466/free-illustration-image-gould-vintage-bird Free Image from public domain license
Yellow-bellied Sphecotheres (Sphecotheres flaviventris) illustrated by Elizabeth Gould (1804–1841) for John… https://www.rawpixel.com/image/321438/free-illustration-image-gould-bird-australian Free Image from public domain license
Yellow-throated Honey-eater (Ptilotis flavigula) illustrated by Elizabeth Gould (1804–1841) for John Gould’s… https://www.rawpixel.com/image/321398/free-illustration-image-gould-bird-1800s Free Image from public domain license
30.The Yellow-billed Cuckoo (Coccyzus americanus) 31. The Black-billed Cuckoo (Coccyzus erythrophthalmus) illustration from… https://www.rawpixel.com/image/329332/free-illustration-image-cuckoo-bird-zoology-new-york Free Image from public domain license
199. Yellow-crowned Night Heron (Ardea violacea) 200. Lawyer (Himantopus nigricollis) illustration from Zoology of New York… https://www.rawpixel.com/image/329288/free-illustration-image-heron-bird-birds-new-york Free Image from public domain license
107. The Blue-grey Warbler (Sylvicola cærulea) 108. https://www.rawpixel.com/image/329299/free-illustration-image-yellow-warbler-vintage-bird-public-domain-zoology-new-york Free Image from public domain license
70. The Great-crested Kingbird (Tyrannus crinitus) 71. The Yellow-brested Chat (Icteria viridis) illustration from Zoology… https://www.rawpixel.com/image/329344/free-illustration-image-kingbird-century-birds-new-york Free Image from public domain license
76. The Solitary Greenlet (Vireo solitarius) 77. The Yellow-throated Greenlet (Vireo flavifrons) illustration from Zoology… https://www.rawpixel.com/image/329335/free-illustration-image-birds-new-york-vireo-vintage-animals Free Image from public domain license