Adult blackish oystercatcher (Haematopus ater), Carcass Island, Falklands, South Atlantic Ocean, South America

Brown-headed cowbird (Molothrus ater), Yellowstone National Park, Wyoming, United States of America, North America

Coal tit (Parus ater), taking sunflower seed from feeder in winter in the garden, United Kingdom, Europe

An adult common chuckwalla (Sauromalus ater), basking in the sun at Isla Danzante, Baja California Sur, Mexico, North America

An adult common chuckwalla (Sauromalus ater), at Punta Colorado, Isla San Jose, Baja California Sur, Mexico, North America

Common chuckwalla, Sauromalus ater, basking in the sun in Red Rock Canyon State Park, California, USA.

Common chuckwalla (Sauromalus ater), Leadfield in Titus Canyon in Death Valley National Park, California, United States of America, North America

Common chuckwalla, Sauromalus ater, basking in the sun in Red Rock Canyon State Park, California, USA.

Common chuckwalla, Sauromalus ater, basking in the sun in Red Rock Canyon State Park, California, USA.

Common chuckwalla, Sauromalus ater, basking in the sun in Red Rock Canyon State Park, California, USA.

Oystercatcher (haematopus ater) new island, falkland islands, stood on lichen covered rock.

Oystercatcher (haematopus ater) new island, falkland islands, standing on rock on one leg.

Adult bull American Bison buffalo ( Bos bison ) with Brown-headed Cowbird ( Molothrus ater ) on back in prairie landscape at Riding Mountain National Park Manitoba Canada

Chuckwalla, (Common Chuckwalla ater), adult, on ground, foraging, portrait, Sonoran Desert, Arizona, North America, USA, North America

Boy Coal tits (Parus ater) Emsland, Lower Saxony, Germany, Europe

Chuckwalla in Joshua Tree National Park California USA

Black Caracara (Daptrius ater) hooted in flight by aTropical Kingbird (Tyrannus melancholicus), Alter do Chao, Brazilian Amazon.