Eurasian wren with distinctive short erect tail

eurasian wren troglodytes troglodytes wren northern wren winterkoning tiny brown bird bird insectivorous insectivorous bird birdwatching troglodytes troglodytidae short neck supercilium tail cocked up wooded areas diurnal territorial woodlands nature wooded habitats europe wings stump aves ornithology plumage wild isolated avian bokeh outdoors shallow focus shallow depth of field closeup species feathers small game ecology no people nobody natural forest bird erect tail