CCTV camera on top of a light post.. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299066/free-photo-image-animal-antenna-bird Free Image from public domain license
Small bird perched on fence, wildlife photography. Free public domain CC0 image. https://www.rawpixel.com/image/6025349/photo-image-public-domain-tree-nature Free Image from public domain license
Free little ducks walking on grass image, public domain animal CC0 photo. https://www.rawpixel.com/image/5901107/photo-image-public-domain-plant-nature Free Image from public domain license
A ptarmigan (Lagopus mutus) in both summer and winter plumage. Colour lithograph, ca. 1875. https://www.rawpixel.com/image/13954691/image-animal-public-domain-bird Free Image from public domain license
A common kingfisher sitting on a branch of a tree. Etching by Heath. https://www.rawpixel.com/image/13956464/common-kingfisher-sitting-branch-tree-etching-heath Free Image from public domain license
Bull SnakePhoto by Grayson Smith/USFWS. Original public domain image from Flickr https://www.rawpixel.com/image/4028641/photo-image-bird-nature-snake Free Image from public domain license
A serpent, a winged serpent and a dragon. Woodcut after C. Gessner. https://www.rawpixel.com/image/13962437/serpent-winged-serpent-and-dragon-woodcut-after-gessner Free Image from public domain license
Two scorpions: Scorpio italicus and Scorpio aquilejensis. Coloured engraving. https://www.rawpixel.com/image/13954193/two-scorpions-scorpio-italicus-and-scorpio-aquilejensis-coloured-engraving Free Image from public domain license
Northern pygmy owl at Lewis and Clark Caverns State Park in Jefferson County, Montana. October 2013. Original public domain… https://www.rawpixel.com/image/3335573/free-photo-image-accipiter-animal-anthus Free Image from public domain license
ATLANTIC OCEAN -- Curious seabirds circle Coast Guard Cutter Eagle March 13, 2013 during the officer candidate school… https://www.rawpixel.com/image/5977098/photo-image-public-domain-bird-animal Free Image from public domain license
Trumpeter swans feeding on the Madison River by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038412/photo-image-bird-animal Free Image from public domain license
Ruby-crowned kinglet (Regulus calendula) near Rescue Creekby Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038838/photo-image-bird-animal Free Image from public domain license
Bird hides behind leaves in the wild. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297504/free-photo-image-agelaius-animal-beak Free Image from public domain license
Mevoj sur kaj-perono kaj -fostoj, sub meztaga suno.. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3295555/free-photo-image-animal-architecture-banister Free Image from public domain license
Above, a coot, a crake and three crabs; below, three crabs and a cougar. Coloured etching. https://www.rawpixel.com/image/13967922/image-cat-pattern-animal Free Image from public domain license
NEW LONDON, Conn. -- Fall comes to the U.S. Coast Guard Academy campus Oct. 22, 2015. U.S. Coast Guard photo by Petty… https://www.rawpixel.com/image/5977108/photo-image-public-domain-bird-animal Free Image from public domain license
Goslings resting near a pondPhoto by Courtney Celley/USFWS. Original public domain image from Flickr https://www.rawpixel.com/image/4028965/photo-image-baby-bird Free Image from public domain license
Bird's-eye view of the cotton states and international exposition--Atlanta, GA, U.S.A. https://www.rawpixel.com/image/7690029/image-art-vintage-public-domain Free Image from public domain license
[Modern illustrated sheets with pictorial envelope]. Original from the Library of Congress. https://www.rawpixel.com/image/7636502/image-moon-art-vintage Free Image from public domain license
A western Meadowlark adds a small flash of sunshine to a frosty April morning. Broadwater County, MT. April 2018. Original… https://www.rawpixel.com/image/3335609/free-photo-image-agelaius-animal-bird Free Image from public domain license