owl in green forest. boreal owl, aegolius funereus, perched on beech branch. typical small owl with big yellow eyes in cloudy day

aegolius america animal asia background beak beech bill bird boreal canada cloudy colorful czech day denmark europe eyes feather finland forest france funereus green hunt hunter korea leaves look natural nature nesting nocturnal norway owl perched plumage predator raptor season small spring summer sweden tengmalm tree trunk typical wild wildlife yellow