Blue tit (Cyanistes caeruleus) looking out of the entrance hole of the breeding cavity, Moenchbruch nature reserve, Moerfelden, Hesse, Germany, Europe

animals in the wild animals animal aves bird photography birds bird blue tits blue tit breeding burrows breeding burrow central europe cyanistes caeruleus deserted empty europe fauna german federal republic germany habitat hessen hesse hessia looking look middle europe moenchbruch nature reserve moerfelden moenchbruch nature reserve moerfelden natural environments natural environment natural habitat naturschutzgebiet moenchbruch naturschutzgebiet moenchbruch nest hole nesting holes nesting hole nesting nest nobody no one no people oscine paridae parus caeruleus passeriformes passerines passerine passeri songbirds songbird uninhabited wild animals wild animal wildlife photography wildlife