Dave Bevan / Long eared owl (Asio otus) perched on fence post, head cocked on one side, Wales, UK, captive

Dave Bevan / Long eared owl (Asio otus) perched on post, shaking wings in rain, Wales, UK, captive

Dave Bevan / Long eared owl (Asio otus) peering round trunk of larch tree, Wales, UK, captive

David Kjaer / Long eared owl {Asio otus} UK

Dietmar Nill / Long eared owl (Asio otus) in flight with snow. Germany, Europe

Dietmar Nill / Long eared owl chick (Asio otus) showing aggression. Germany, Europe

Oscar Dewhurst / Long-eared Owl (Asio otus) hunting over grassland. Durham, UK. May

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

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

Roger Powell / Northern Long-eared Owl (Asio otus) on a branch of a Scots Pine. Bayerische Wald, Bavaria, Germany. April.

David Allemand / Long-eared owl (Asio otus) on tree, Ecrins National Park, Alps, France, November.