saker falcon, falco cherrug, detail portrait of bird of prey. rare bird with white head. forest in cold winter, animal in nature

animal avian biarmicus bird brown chest chill chilly claws close cold color europe eye falco falcon feathers flight fly freeze frost glaze hawk head hunter ice lanner legs light natural nature outdoor perched plumage portrait powerful predator prey raptor saker snow snowfall snowflake talons weather white wild wildlife winter