Hey!!!! Do you like Blue tit. Blue tit is very beautiful bird and very little.The Blue tit is yellow,red,green,bule mix color.All peoples are very like Blue tit.It's very little quite and smallest.The srilanka people say battichcha.It famous name in sri lanka.The English name is Blue tit. The Blue Tit, Cyanistes caeruleus, is a 10.5 to 12 cm (4.2 to 4.8 inches,) long passerine bird in the tit family Paridae. It is a widespread and common resident breeder throughout temperate and subarctic Europe and western Asia in deciduous or mixed woodlands. It is a resident bird; i.e., most birds do not migrate. This species was first described by Linnaeus in his Systema nature in 1758 as Parus caeruleus.
Most authorities retain Cyanistes as a subgenus of Parus, but the British Ornithologists' Union treats Cyanistes as a distinct genus. This is supported by mtDNA cytochrome b sequence analysis which suggests that Cyanistes is not only distinct, but not close to other tits (Gill et al., 2005). The azure blue crown and dark blue line passing through the eye and encircling the white cheeks to the chin give the Blue Tit a very distinctive appearance. The forehead and a bar on the wing are white. The nape, wings and tail are blue; the back is yellowish green; the under parts mostly sulphur-yellow with a dark line down the abdomen. The bill is black, the legs bluish grey, and the irides dark brown. The sexes are similar, but under ultraviolet light, males have a brighter blue crown. Young Blue Tits are noticeably more yellow.
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