bird nest on a poplar tree in russia

above autumn bark bathing birdwatching blue branches breeding build caliology coppice copse cup deciduous discover discovery domicile dry environment europe fall forest grove grow habitat high incubation insulation leaves life malpighiales messy naturalist nature nest observe october ornithology outside poplar populus reproduction russian salicaceae salicoideae science september shelter silvan sky snuggery structure sunny sylvan tree trunk twigs unkempt upward vladimir white wild wilderness wildlife woodland woods yellow zoology