860-291227 - Blue footed booby (Sula Nebouxii) upon its eggs on the ground. Galapagos archipelago. Ecuador.

860-286070 - Southern skua and chick on ground, Falkland Islands

860-286071 - Southern skua and chick on ground, Falkland Islands

860-286072 - Southern skua chick on ground, Falkland Islands

832-373720 - Barn Owl (Tyto alba), fledgling, Germany, Europe

832-373723 - Snowy Owls (Nyctea scandiaca), two fledglings callingtdoors, outside, ornithology, zoology, color, colour

832-369715 - Little Owl (Athene noctua), approaching nesting hole

832-374657 - Birds' nests in a Saguaro cactus (Carnegiea gigantea) in Saguaro National Park, Tucson, Arizona, USA

832-373794 - Great Egret (Egretta alba), adult bird feeding young in the nest, Florida, USA, America

832-367686 - Black Woodpecker (Dryocopus martius) at nest hole in a beech with chicks (Fagus sylvatica), Biosphaerenreservat Schwaebische Alb or Swabian Mountains Biosphere Reserve, UNESCO World Heritage Site, Baden-Wuerttemberg, Germany, Europe

832-367800 - Great Blue Heron (Ardea herodias) with chicks in a nest, Florida, USA

832-367684 - Black Woodpecker (Dryocopus martius) at nest hole in a beech with chick (Fagus sylvatica), Biosphaerenreservat Schwaebische Alb or Swabian Mountains Biosphere Reserve, UNESCO World Heritage Site, Baden-Wuerttemberg, Germany, Europe

832-373721 - Snowy Owls (Nyctea scandiaca), three fledglings calling

832-369727 - Great Spotted Woodpecker (Dendrocopos major), Bitburg, Rhineland-Palatinate, Germany, Europe

832-367341 - Spotted Owlet (Athene brama), Ranthambore National Park, Rajasthan, India, Asia

832-374968 - Great Spotted Woodpecker or Greater Spotted Woodpecker (Dendrocopos major), with insects in its beak at the nesting hole, Rhineland-Palatinate, Germany, Europe

832-372950 - Northern hawk owl (Surnia ulula), female with prey perched at the nesting hole, Finland, Europe

832-373719 - Barn Owl (Tyto alba), fledgling, Germany, Europe

832-373722 - Snowy Owls (Nyctea scandiaca), three fledglings calling

832-367342 - Spotted Owlet (Athene brama) in a tree hole, Ranthambore National Park, Rajasthan, India, Asia

832-367343 - Two Spotted Owlets (Athene brama) staring from their tree hole in Ranthambore Tiger Reserve, Ranthambore National Park, Rajasthan, India, Asia

832-367685 - Black Woodpecker (Dryocopus martius) at nest hole in a beech with chicks (Fagus sylvatica), Biosphaerenreservat Schwaebische Alb or Swabian Mountains Biosphere Reserve, UNESCO World Heritage Site, Baden-Wuerttemberg, Germany, Europe

832-153368 - Colourfully painted bird house at the Rosenheim 2010 State Garden Show, Rosenheim, Bavaria, Germany, Europe

832-144183 - Boreal Owl or Tengmalm's Owl (Aegolius funereus), looking out of nest cave

832-144182 - Boreal Owl or Tengmalm's Owl (Aegolius funereus), looking out of nest cave

832-130453 - Nest box for insects, insect hotel, courtyard, St. Martin Church, Weismain, Upper Franconia, Bavaria, Germany, Europe

832-18743 - Southern Carmine Bee-eater (Merops nubicoides) in a nesting cave on the steep banks of the Okavango River, Botswana, Africa

832-37541 - Osprey (Pandion haliaetus) in an artificial nest, Sanibel Island, Florida, USA

764-3352 - Uinta ground squirrel (Urocitellus armatus) with nesting material, Yellowstone National Park, Wyoming, United States of America, North America

988-115 - American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

988-112 - American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

988-113 - American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

988-114 - American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

988-110 - American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

988-111 - American mink (Mustela vison). Non-native species in the UK considered a threat to ground-nesting birds and water voles in particular. Widespread as a result of escapes from fur farms since the 1950s. Hebrides, Scotland

911-7425 - A moorland bird's egg fried by the moorland fire when tinder dry conditions were set alight by a discarded cigarette on the 25th of May, Littleborough, Lancashire, England, United Kingdom, Europe

832-8842 - Elf Owl (Micrathene whitneyi), adult in nest hole in telephone pole, Madera Canyon, Tucson, Arizona, USA

832-8816 - Golden-fronted Woodpecker (Melanerpes aurifrons), male at nesting cavity in palm tree, Brownsville, Rio Grande Valley, South Texas, USA

832-2668 - Young European Starlings (Sturnus vulgaris)

832-8731 - Least Grebe (Tachybaptus dominicus), adult on nest with 1 day old young on back, Lake Corpus Christi, South Texas, USA

832-25190 - Southern Masked-Weaver or African Masked-weaver (Ploceus velatus), adult male hanging beneath its nest, displaying, Madikwe National Park, South Africa

832-25197 - Southern Masked-Weaver or African Masked-weaver (Ploceus velatus), adult male weaving its nest, Madikwe National Park, South Africa

764-1608 - Columbian ground squirrel (Citellus columbianus) with nesting material, Manning Provincial Park, British Columbia, Canada