Tawny owl (Strix aluco), captive, United Kingdom, Europe

European eagle owl chicks (Bubo bubo), captive, United Kingdom, Europe

Chicks of Northern hawk owl (Surnia ulula ulula), native to Scandinavia and Eurasia, captive, World Owl Trust, Cumbria, England, United Kingdom, Europe

Barn owl (Tyto alba) chicks in captivity, Cumbria, England, United Kingdom, Europe

A young Verreaux's eagle-owl (Bubo lacteus), in Chobe National Park, Botswana, Africa

Barn owl (Tyto alba) chicks, captive, Cumbria, England, United Kingdom, Europe

A young Pel's fishing-owl (Scotopelia peli), in the Okavango Delta, Botswana, Africa

Young Tawny Owl chicks in the nest in a hollow tree in Ambleside, Cumbria, England, United Kingdom, Europe

A young Tawny Owl chick out of the nest in woodland in Ambleside, Cumbria, England, United Kingdom, Europe

A young Tawny Owl Chick on a woodland floor, Ambleside, Cumbria, England, United Kingdom, Europe

Snowy Owls

Snowy Owls at Sunrise

Eagle Owl, (Bubo bubo), young on rock, Pelm, Kasselburg, Eifel, Germany, Europe

Barn Owl (Tyto alba), fledgling, Germany, Europe

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

Little Owl (Athene noctua), approaching nesting hole

Ural Owl (Strix uralensis), juvenile birds, Bavarian Forest National Park, Bavaria, Germany, Europe

Young Snowy Owl (Bubo scandiacus, Nyctea scandiaca)

Little Owl (Athene noctua) approaching nesting hole with prey, Bitburg, Rhineland-Palatinate, Germany, Europe

Boreal Owl or Tengmalm's Owl (Aegolius funereus), juvenile perched on a branch, Neunkirchen, Siegerland region, North Rhine-Westphalia, Germany, Europe

Little Owl (Athene noctua) approaching nesting hole with prey, Bitburg, Rhineland-Palatinate, Germany, Europe

Snowy Owls (Nyctea scandiaca), three fledglings calling

Young Snowy Owl (Bubo scandiacus, Nyctea scandiaca)

Boreal Owl or Tengmalm's Owl (Aegolius funereus), juvenile perched on a spruce, Neunkirchen, Siegerland region, North Rhine-Westphalia, Germany, Europe

Long-eared Owl (Asio otus), two young fledglings, branchlings sitting on a tree branch, Apetlon, Lake Neusiedl, Burgenland, Austria, Europe

Young Snowy Owl (Bubo scandiacus, Nyctea scandiaca)

Eagle Owl (Bubo bubo), fledgling, alert, Germany, Europe

Barn Owl (Tyto alba), fledgling, Germany, Europe

Snowy Owls (Nyctea scandiaca), three fledglings calling

Tawny owl (Strix aluco), three fledglings sleeping close together on a branch, Bad Homburg, Hesse, Germany, Europe

Tawny owl (Strix aluco), young birds, young branches sleeping on a branch, Siegerland, North Rhine-Westphalia, Germany, Europe

Young eagle owls (Bubo bubo) in a nest in a gravel pit, owl, Oldenburger Muensterland, Vechta, Lower Saxony, Germany, Europe

Little owl (Athene noctua), young bird looking out of the entrance of the nest box, Muensterland, North Rhine-Westphalia, Germany, Europe

Young Eurasian eagle-owl (Bubo bubo) on a rock threatening a crow, Sauerland, Germany, Europe

Three young Eurasian eagle-owls (Bubo bubo) in a quarry, Sauerland, Germany, Europe

Tengmalm's Owl (Aegolius funereus), two young birds sitting on a larch branch, Siegerland, North Rhine-Westphalia, Germany, Europe

Tengmalm's Owl (Aegolius funereus), juvenile, with a preyed ground mouse (Microtus agrestis), sitting on a larch branch, Siegerland, North Rhine-Westphalia, Germany, Europe

Little owls (Athene noctua), feeding young, Emsland, Lower Saxony, Germany, Europe

Snowy owl (Nyctea scandiaca) Young bird, chick, portrait, captive

Eagle Owl (Bubo bubo), fledgling, alert, Germany, Europe

Young little owls (Athene noctua) at the breeding tube, Emsland, Lower Saxony, Germany, Europe

Ural Owl (Strix uralensis), young bird, branchling on a branch, Germany, Europe

Young Snowy Owl (Bubo scandiacus, Nyctea scandiaca)

Young Eurasian eagle-owl (Bubo bubo) on a rock, Sauerland, Germany, Europe

Tengmalm's Owl (Aegolius funereus), two young birds sitting on a larch branch, Siegerland, North Rhine-Westphalia, Germany, Europe

Ferruginous Pygmy-Owl (Glaucidium brasilianum), young looking out of nesting cavity, Willacy County, Rio Grande Valley, South Texas, USA

Two Hawk Owls (Strix uralensis), young bird, branchlings on a branch, Germany, Europe

Ural Owl (Strix uralensis), juvenile

Camoflaged Eurasian Eagle Owl (Bubo bubo)

Eurasian eagle-owl (Bubo bubo) chicks sitting in a crevice, wildlife, Black Forest, Baden-Wuerttemberg, Germany, Europe

Two young Eurasian eagle-owls (Bubo bubo) in a quarry, Sauerland, Germany, Europe

Ferruginous Pygmy-Owl (Glaucidium brasilianum), young newly fledged, Willacy County, Rio Grande Valley, South Texas, USA

Barred Owl (Strix varia), young in nesting cavity, Raleigh, Wake County, North Carolina, USA

Eurasian eagle-owl (Bubo bubo) chicks sitting in a crevice, wildlife, Black Forest, Baden-Wuerttemberg, Germany, Europe

Ural Owl (Strix uralensis), young bird, branchling on a branch, Germany, Europe

Young Tengmalm's Owls or Boreal Owls (Aegolius funereus), Finland, Europe

Eagle Owl (Bubo bubo), young bird, portrait, Germany, Europe

Tawny owl (Strix aluco), Nestling on tree stump, Hattingen, Germany, Europe

Eurasian Eagle Owl (Bubo bubo), portrait

Young Snowy Owl (Bubo scandiacus, Nyctea scandiaca)

Eagle Owl (Bubo bubo), fledgling, alert, Germany, Europe

Tawny owl (Strix aluco), Nestling on tree stump, Hattingen, Germany, Europe

Northern hawk owl (Surnia ulula), branchling, Varanger, Finnmark, Norway, Europe

Two young Little owls (Athene noctua), Emsland, Lower Saxony, Germany, Europe

Snowy owl (Nyctea scandiaca) Young bird, chick, portrait, captive

Young Tengmalm's Owl or Boreal Owl (Aegolius funereus), Finland, Europe

Young hawk owl (Strix uralensis), looking out of the breeding hole, Bavarian Forest, Germany, Europe

Ural Owl (Strix uralensis), juvenile, portrait

Tawny owl (Strix aluco), young bird sits on mossed branch, North Rhine-Westphalia, Germany, Europe

Young hawk owl (Strix uralensis), looking out of the breeding hole, Bavarian Forest, Germany, Europe

Northern hawk owl (Surnia ulula), branchling, Varanger, Finnmark, Norway, Europe

Barn Owl (Tyto alba), young in nest box hissing, Rio Grande Valley, Texas, USA

Long-eared owl (Asio otus), juvenile, portrait, Burgenland, Austria, Europe

Long-eared owl (Asio otus), young bird, sitting on Bromberg branch, Hesse, Germany, Europe

Great Horned Owlet (Bubo virginianus); Fort Collins, Colorado, United States of America

Great Horned Owl and Owlet (Bubo virginianus); Fort Collins, Colorado, United States of America

Great Horned Owlet (Bubo virginianus); Fort Collins, Colorado, United States of America

Young European Eagle Owl, Bubo bubo, Germany, Bavaria

Young Tawny Owl in a reed bed, Danube Delta Romania

Barn owl;Tyto alba) perched in an old barn, England

Barn owl (Tyto Alba) in flight with a prey, England

Juvenile Little Owl (Athene noctua) perched among olive trees. Toledo region, Spain

Juvenile Little Owl (Athene noctua) perched among olive trees. Toledo region, Spain