Ben Hall / Eagle owl (Bubo bubo) in flight through forest, backlit at dawn, Czech Republic, November. Captive.

Ben Hall / Eurasian eagle owl (Bubo bubo) flying low over snow covered grouns with trees in background, Czech Republic, February. Captive.

Ole Jorgen Liodden / Eurasian eagle-owl (Bubo bubo) in flight, Norway, July.

Ben Hall / Eurasian Eagle owl (Bubo bubo) in flight through dense forest, Czech Republic, January

Oscar Dewhurst / Long-eared owl (Asio otus) in flight over farmland. Durham, UK. May

Oscar Dewhurst / Long-eared owl (Asio otus) in flight over farmland. Durham, UK. May

David Allemand / Eurasian eagle-owl (Bubo Bubo) Alpilles, France, June.

David Allemand / Eurasian eagle-ow (Bubo Bubo) perched on rocks, Alpilles, France, June.

David Allemand / Eurasian eagle-owl (Bubo Bubo) perched on rocks, Alpilles, France

David Allemand / Eurasian eagle-owl (Bubo Bubo) female in the nest with its two chicks, Alpilles, France, April.

Oliver Hellowell / Eurasian eagle owl (Bubo bubo) landing on post, captive, falconry bird.

Edwin Giesbers / Eagle owl (Bubo bubo) adult and chick at nest, Netherlands. May.