the wood nuthatch, sitta europaea

animal avian aviary baby back backgound bath beak beaks belly bill bird birds birdwatching breast breeding cavity chicks claw colorful eurasian europaea eye eyes face feather feathers feed feeding flower forest green head hole hungry juvenile nature nest nesting nuthatch open ornithology parents plumage plume preparing reflecting season sitta sitting some surface tail talon tree waterhole wild wildlife wing wings wood young