Guan delle alture

Identificazione

The highland guan grows to a length of 590 to 650 millimetres (23 to 26 in). The plumage of the male is black, the upper parts glossed with green or blue, the underparts rather duller. The iris of the eye is reddish-brown and there is reddish-brown or purplish bare skin around and behind the eye. The beak, the bare skin on the throat, the large wattle, the legs and feet are reddish-orange. The female, by contrast, is black, heavily mottled and barred with reddish-brown and cinnamon, with a red beak and bare skin round the beak, and purplish bare skin round the eye.

Tassonomia

The three syntype specimens of Penelope niger Fraser (Proc. Zool. Soc. London, 1850 (1852), p.246, pl.XXIX.) are held in the collections of National Museums Liverpool at World Museum, with accession numbers D484 (male adult) and D484a (female adult) and D484b (male adult). The specimens came to the Liverpool national collection via the 13th Earl of Derby’s collection which was bequeathed to the people of Liverpool in 1851. D484 and D484a were purchased from Mess. Leadbeater in September 1843 while D484b died at the menagerie at Knowsley Hall on 5 August 1850.

Nome scientifico

Penelopina nigra

Autorità

(Fraser, 1852)

Ordine

Galliformi

Famiglia

Cracidae

Genere

Penelopina

Areale e habitat

The highland guan is found on either side of the mountain ranges in Central America. In Mexico it is uncommon, but it is present in moderate numbers in the El Triunfo Biosphere Reserve. It is also common in some localities in Guatemala, but rather rarer in Honduras, north-central Nicaragua and El Salvador, and it may be extinct in El Salvador. Its habitat is humid broad-leaved mountain forests, mainly cloud forests and pine-oak forests, but it has also been observed in secondary forests and plantations. The bird forages for fruit, in the trees and on the leaf litter.

Migrazione

Resident species

Conservazione

Tendenza della popolazione

declining