"Coal Tit (Parus ater), perched on a branch covered with lichen, Neunkirchen, Siegerland, North Rhine-Westphalia, Germany, Europe"

"Blue Tit (Parus caeruleus), perched on a branch covered with lichen, Neunkirchen, Siegerland, North Rhine-Westphalia, Germany, Europe"

"Long-tailed Tit (Aegithalos caudatus), perched on a branch covered with moss and lichen, North Rhine-Westphalia, Germany, Europe"

"Eurasian Bullfinch (Pyrrhula pyrrhula), female sitting on a lichen-covered branch, Neunkirchen in Siegerland, North Rhine-Westphalia, Germany, Europe"

"Robin (Erithacus rubecula) perched on a spruce branch covered in beard lichen, Swabian Alb biosphere reserve, Baden-Wurttemberg, Germany, Europe"

"Buzzard (Buteo buteo) perched on a dead snow-covered branch, Siegerland, Neunkirchen, North Rhine-Westphalia, Germany, Europe"

"Buzzard (Buteo buteo) perched on a dead snow-covered branch, Siegerland, Neunkirchen, North Rhine-Westphalia, Germany, Europe"

"Buzzard (Buteo buteo) perched on a dead snow-covered branch, Siegerland, Neunkirchen, North Rhine-Westphalia, Germany, Europe"

"Long-tailed Tit or Long-tailed Bushtit (Aegithalos caudatus) perched on a branch covered with lichen, North Rhine-Westphalia, Germany, Europe"

"Nuthatch (Sitta europaea) sitting on a lichen-covered branch in autumn with a sunflower seed in its beak, Neunkirchen in Siegerland, North Rhine-Westphalia, Germany, Europe"

"European Robin (Erithacus rubecula) perched on its song post, an old pine branch with lichens, Swabian Alb biosphere reserve, Baden-Wurttemberg, Germany, Europe"

European robin (Erithacus rubecula) sitting on a stone in front of autumn leaves of a maple tree, Wilden, North Rhine-Westphalia, Germany, Europe

European robin (Erithacus rubecula) on branch covered with lichen, North Rhine-Westphalia, Germany, Europe