Andy Rouse / Snowy owl (Bubo scandiaca) flying, wings forward, Canada. Wild

John Chan / Great horned owl (Bubo virginianus) chicks stretching and flapping their wings, Southern California, USA, May.

John Chan / Great horned owl (Bubo virginianus) chick watching for parents to return with food, Southern California, USA, June.

John Cancalosi / Great horned owl (Bubo virginianus) chick stretching its wings in nest in a Saguaro (Carnegiea gigantea), is groomed by its parent, Sonoran Desert, Arizona, USA, May.

Marie Read / Snowy Owl (Nyctea scandiaca) female perched, Amherst Island, Ontario, Canada, January.

Alan Murphy/ BIA / Great Horned Owl (Bubo virginianus), Texas

Ann & Steve Toon / Spotted eagle owl (Bubo africanus) subadult at nigh by water, Zimanga private game reserve, KwaZulu-Natal, South Africa, September

David Allemand / Snowy owl (Bubo scandiacus) female landing in the snow, Quebec, Canada, March.

David Allemand / Snowy owl (Bubo scandiacus) Female landing in the snow, Quebec, Canada

Guy Edwardes / Snowy owl (Bubo scandiacus) walking on ground in snow, one foot raised, Ontario, Canada, January.

Markus Varesvuo / Snowy owl (Bubo scandiaca) female face close up, Canada February

Markus Varesvuo / Snowy owl (Bubo scandiaca) female sitting among snow covered vegetation on ground, Canada February