Kittiwake Gull from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University… https://www.rawpixel.com/image/277437/free-illustration-image-audubon-birds-america-public-domainFree Image from public domain licenseBlack-legged kittiwake (Rissa Tridactyla) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326335/free-illustration-image-von-wright-brothers-century-wrightFree Image from public domain licenseBlack-legged kittiwake (Rissa Tridactyla) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/326230/premium-illustration-psd-america-ancient-animalView license