Blue tits (Parus caeruleus) couple on a branch, Vosges du Nord Regional Nature Park, France

cyanistes caeruleus parus caeruleus regional natural park winter adult female male couple posing overview chill three quarter shot biosphere reserve blue tit cyanistes caeruleus on a branch vosges du nord regional natural park least concern january squawking cyanistes nobody regional natural parks adults females males posed pose settlings settling overviews global sight global sights full length chilly icy cold as ice colds three quarter views three quarter view three quarter shots three quarter sight three quarter sights three quarter length biosphere reserves blue titmouse blue titmouses blue tits eurasian blue tit eurasian blue tit european blue tit least concern species squaw to to squaw screech to to screech screeching with nobody natural park environment protection environment management biodiversity management environment temperate season seasons atmosphere stage of development individual pair enumeration shot atmosphere ambiance tit passerine bird wild animal vosges mountain range france european union europe low risk iucn) lr iucn red list of threatened species species shout vocal communication sound communication communicate social behaviour behavior paridae passeriformes aves tetrapoda vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota