Great tit (Parus major) entering nestbox with caterpillar for chicks, BelgiumEurasian wren (Troglodytes troglodytes) perched in bush, BelgiumEuropean Serin (Serinus serinus) drinking water from puddle, SpainEuropean Penduline Tit (Remiz pendulinus) building nest in tree, GermanyCommon Wood Pigeons (Columba palumbus) mating on wooden fence in springEuropean Robin (Erithacus rubecula) perched on tree stump in forest in the snow in winterMale Common / House sparrow (Passer domesticus) feeding juveniles on garden fence, BelgiumTwo Eurasian Jays (Garrulus glandarius) perched on tree trunk in forest, BelgiumEuropean Stonechat (Saxicola rubicola) male perched on fence post