Eurasian nuthatch or wood nuthatch bird foraging insects on rotten tree in forest - close-up

eurasian nuthatch nuthatch wood nuthatch sitta europaea bird foraging insect feed forage eat jump closeup rotten tree trunk perched eurasian european forest ornithology environment wildlife animal birdlife feather plumage small wild tree trunk wood animal behavior looking beak insects perch slow motion feeding eating fly away take off fly busy searching food south korea holland pecking bark