Lineated Warbler (Cysticola lineocapilla) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321464/free-illustration-image-australia-gould-illustrations Free Image from public domain license
Square-tailed Warbler (Cysticola isura) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/321420/free-illustration-image-birds-gould-illustrations Free Image from public domain license
Pine Creeping Warbler from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from… https://www.rawpixel.com/image/277500/free-illustration-image-audubon-audubon-america-birds-public-domain-vintage-pine Free Image from public domain license
Chestnut-crowned Pomatorhinus (Pomatorhinus ruficeps) illustrated by Elizabeth Gould (1804–1841) for John… https://www.rawpixel.com/image/321439/free-illustration-image-vintage-century-bird Free Image from public domain license
Little chthonicola (chthonicola minima) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/321211/free-illustration-image-birds-speckled-minima Free Image from public domain license
Hooded Warbler from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University… https://www.rawpixel.com/image/277279/free-illustration-image-audubon-birds-america-public-domain-vintage-bird-prints Free Image from public domain license
Green-backed Gerygone (Gerygone chloronotus) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321062/free-illustration-image-canary-bird-australia Free Image from public domain license
Black & Yellow Warbler from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from… https://www.rawpixel.com/image/277234/free-illustration-image-magnolia-audubon-audubon-america-birds-public-domain Free Image from public domain license
Rufous-headed Warbler (Cysticola ruficeps) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321465/free-illustration-image-gould-australia-century Free Image from public domain license
Yellow Weebill (Smicrornis flavescens) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/321121/free-illustration-image-canary-australia-australian Free Image from public domain license
Fuscous Gerygone (Gerygone fuscus) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881) Birds… https://www.rawpixel.com/image/321041/free-illustration-image-canary-bird-australia Free Image from public domain license
Rock Warbler (Origma rubricata) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881) Birds of… https://www.rawpixel.com/image/321135/free-illustration-image-rocks-vintage-australia-1800s Free Image from public domain license
124. The Wormeating Warbler (Vermivora pensylvanica) 125. The Blue-winged Warbler (Vermivora solitaria) illustration from… https://www.rawpixel.com/image/329321/free-illustration-image-birds-new-york-bird-public-domain-vintage-animal Free Image from public domain license
Buff-breasted Gerygone (Gerygone laevigaster)illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321050/free-illustration-image-canary-bird-gould-illustrations Free Image from public domain license
89. The Varied Creeping Warbler (Mniotilta varia) 90. The Brown Creeper (Certhia americana) 91. The White-breasted Nutchatch… https://www.rawpixel.com/image/329377/free-illustration-image-birds-new-york-zoology-bird Free Image from public domain license
115. The Spotted Canada Warbler (Sylvicola pardalina) 116. The Bay-breasted Warbler (Sylvicola castanea) illustration from… https://www.rawpixel.com/image/329320/free-illustration-image-bird-zoology-new-york-vintage Free Image from public domain license
119. The Ruby-crowned Kinglet (Regulus calendula) 120. The Pine Warbler (Sylvicola pinus) illustration from Zoology of New… https://www.rawpixel.com/image/329283/free-illustration-image-pinus-kinglet-calendula Free Image from public domain license
Barred warbler ♂ (Sylvia nisoria) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version… https://www.rawpixel.com/image/325916/premium-illustration-psd-america-ancient-animal View license
Red warbler (Acrocephalus streperus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/325867/premium-illustration-psd-abstract-acrocephalus-streperus-america View license
Sedge warbler (Acrocephalus schoenobaenus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929… https://www.rawpixel.com/image/325930/premium-illustration-psd-von-wright-brothers-acrocephalus-schoenobaenus-america View license