Michael Quinton / Northern Hawk Owl (Surnia ulula) pair at nest, Alaska

Michael Quinton / Northern Hawk Owl (Surnia ulula) peering from nest, Alaska

Michael Quinton / Northern Hawk Owl (Surnia ulula) parent with chicks at nest, Alaska

Markus Varesvuo / Hawk owl (Surnia ulula) takingn off from powder snow, possibly with prey in talons, Kuusamo Finland February

Markus Varesvuo / Hawk Owl perched in frost (Surnia ulula) Finland

Markus Varesvuo / Hawk owl (Surnia ulula) juvenile, portrait, Kuusamo, Finland, May

Markus Varesvuo / Hawk owl (Surnia ulula) perched on branch calling, Kuusamo, Finland, May

Markus Varesvuo / Hawk Owl (Surnia ulula) perched on snowy tree in front of the moon. Kuusamo, Finland, February.

Michael Quinton / Northern Hawk Owl (Surnia ulula) baby perching on branch, Alaska

Michael Quinton / Northern Hawk Owl (Surnia ulula) perching on branch during snowfall in spring, Alaska

Michael Quinton / Northern Hawk Owl (Surnia ulula) at nest with chicks, Alaska

Loic Poidevin / Northern hawk-owl (Surnia ulula) looking down from nest. Finland. May.