Red-headed Trogon

Identificazione

The red-headed trogon is on average 34 cm (13 in) in length. The male has a red head and breast, a unique feature in the Trogon group. The female resembles the Diard's trogon without a speckled undertail.<p>The head, neck and upper breast of an adult male is dull crimson. A narrow white band crosses the mid breast, underneath which the lower breast to abdomen is light red to pink. Pale red can be observed on the flanks whereas the mantle and back of the bird are rusty brown. The male perches on branches with the support of mauve-blue legs. Regarding wing colouration, the lesser and median wing coverts, secondary coverts, as well as outer webs of tertials and secondaries are vermiculated black and white. The primary feathers also appear black and white. As for the bird's long tail, the central feathers are dark brown with a black tip, the second and third pairs are black and the outer pairs are white with black bases. Finally, a black-tipped cobalt blue bill, a deep mauve-blue gape and eyering and reddish-brown irises shape the bird's face.<p>The head, neck and upper breast of an adult female are olive-brown. Just like the male, a narrow white band crosses the mid breast, underneath which the lower breast to abdomen is light red to pink. The mantle and back appear orange to brown in colour. The wings are vermiculated dark brown and yellowish brown. The tail feathers are very similar to those of the males. The bill, gape and bare eyering are pale blue on females.<p>At the juvenile stage, the head, neck and upper-parts are buff brown, whereas the underparts appear buff white. No black tip on the narrower central tail feathers can be observed.

Tassonomia

Trogon erythrocephalus was the scientific name proposed by John Gould in 1834 for a red-headed trogon specimen from Yangon in Myanmar. In the 19th and 20th centuries, several specimens were described:

Nome scientifico

Harpactes erythrocephalus

Autorità

(Gould, 1834)

Ordine

Trogoniformes

Famiglia

Trogonidi

Genere

Harpactes

Areale e habitat

The red-headed trogon is widely distributed from central Nepal, Southeast Asia, southern China to Sumatra.It is uncommon to scarce in Nepal where habitat destruction most certainly explains a rapid decline in population numbers. It is fairly common in northeastern India, frequent in Bhutan, and locally dispersed in Bangladesh.It prefers upland forests and lives in dense broadleaved forests and in tropical and subtropical zones in the Himalayan foothills. In Southeast Asia, it frequents broadleaved evergreen forests from 300 to 2,600 m (980 to 8,530 ft). In Myanmar, it lives in bamboo and oak forests at an elevation of 2,500 m (8,200 ft).In Laos, it occurs in evergreen forests and adjacent plains 1,700 m (5,600 ft).The forests in Vietnam appear to be a stronghold.In northern, western and southern Thailand, it favours climax broadleaved evergreen forests between 400 and 2,000 m (1,300 and 6,600 ft).On the Malay Peninsula, it inhabits evergreen lowland, lower montane and taller upper montane forests at elevations ranging from 300 to 1,680 m (980 to 5,510 ft). Farther south, it is rarely seen below 700 m (2,300 ft).

Migrazione

Specie stanziale

Comportamento

Comportamento migratorio: Specie stanziale.

Conservazione

Tendenza della popolazione: in diminuzione.

Tendenza della popolazione

in diminuzione