American Kestrel (Sparrow Hawk) (Falco sparverius), male, Yellowstone National Park, Wyoming, United States of America, North America

White-Crowned Sparrow (Zonotrichia leucophrys), Pahranagat National Wildlife Refuge, Nevada, United States of America, North America

American kestrel (sparrow hawk) (Falco sparverius) female, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

American kestrel (sparrow hawk) (Falco sparverius) female, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

American kestrel (sparrow hawk) (Falco sparverius) female, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

American kestrel (sparrow hawk) (Falco sparverius), male, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

White-crowned sparrow (Zonotrichia leucophrys), Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

American Kestrel (Sparrow Hawk) (Falco sparverius) in captivity, Arizona Sonora Desert Museum, Tucson, Arizona, United States of America, North America

American Tree Sparrow (Spizella arborea), Yellowstone National Park, Wyoming, United States of America, North America

White-Crowned Sparrow (Zonotrichia leucophrys), Yellowstone National Park, Wyoming, United States of America, North America

White-crowned sparrow (Zonotrichia leucophrys), juvenile, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

White-crowned sparrow (Zonotrichia leucophrys), Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

American Tree Sparrow

Yellowhammer (Emberiza citrinella) cock in mating plummage, Neunkirchen im Siegerland, North Rhine-Westphalia, Germany, Europe

White-crowned Sparrow (Zonotrichia leucophrys), adult perched on Possum Haw Holly (Ilex decidua) berries, Bandera, Hill Country, Central Texas, USA

Olive Sparrow (Arremonops rufivirgatus), adult bathing, Starr County, Rio Grande Valley, South Texas, USA

White-crowned Sparrow (Zonotrichia leucophrys), adult fighting with Savannah Sparrow (Passerculus sandwichensis), Sinton, Corpus Christi, Coastal Bend, Texas, USA

Reed bunting (Emberiza schoeniclus), Lower Saxony, Germany, Europe

Savannah Sparrow (Passerculus sandwichensis), adult in flight, Sinton, Corpus Christi, Coastal Bend, Texas, USA

Yellowhammer (Emberiza citrinella), sitting on the snow-covered ground in winter, Tyrol, Austria, Europe

A Sparrow Perches On The Top Of Fireweed (Chamerion Angustifolium), Mendenhall Wetlands, Juneau, Alaska, United States Of America