Yellow-billed Blue-Magpie

Identificazione

Length 66 cm (26 in), including tail of about 46 cm (18 in). Sexes alike. Head, neck, and breast black, with a white patch on the nape; remainder of lower plumage white, faintly tinged with lilac; whole upper plumage purplish-blue, brighter on the wings and tail; flight-feathers tipped with white, along with white outermost wing feathers; tail long and graduated, with blue feathers tipped with white, except for the very long central pair which have a band of black in front of the white

Tassonomia

Genere: Urocissa; famiglia: Corvidae; ordine: Passeriformes.

Nome scientifico

Urocissa flavirostris

Autorità

(Blyth, 1846)

Ordine

Passeriformi

Famiglia

Corvidi

Genere

Urocissa

Areale e habitat

The yellow-billed blue magpie is found throughout the Himalayas from Hazara to the Brahmaputra. It is divided into two sub-species. Of these, U. f. cucullata is the more common and is found from the Western boundary of the range to Western Nepal, being common through most of the hill stations of the Western Himalayas, breeding in a zone from 1,500 to 3,000 m (4,900 to 9,800 ft). The eastern form is found from Eastern Nepal eastwards and differs in that the under parts have a darker lilac tinge; its zone is slightly higher than that of the Western form, and it seldom occurs as low as 1,830 m (6,000 ft). It is a resident species, but during the winter months it usually moves to lower elevations. From Simla eastwards, the closely related red-billed blue magpie (Urocissa erythroryncha) is often found in the same areas as the yellow-billed species; it is particularly common about Mussoorie, Tehri-Garhwal, -Kumaon, and in Nepal, and may be easily distinguished by its red beak and the greater extent of the white nape-patch.

Migrazione

Migrazione verticale

Comportamento

Comportamento migratorio: Migrazione verticale.

Conservazione

Tendenza della popolazione: stabile.

Tendenza della popolazione

stabile