Trogon à tête noire

Identification

The black-headed trogon is 27 to 28 cm (11 to 11 in) long and weighs about 74 to 95 g (2.6 to 3.4 oz). Adults of both sexes have slate-black to black head, neck, and chest. A sky-blue ring of bare skin surrounds the dark eye. A thin white line separates the chest from the rest of their underparts, which are cadmium to chrome yellow that becomes lighter at the vent area. The two inner pairs of tail feathers are metallic bronze breen to bluish green with black tips. The next pair are all black and the outermost three pairs are black with wide white tips. Their wings are slate black with some white. Adult males' upperparts are bright metallic bluish green to golden green with metallic blue to bluish violet rump and uppertail coverts. Adult females replace the male's metallic upperparts with dark slate.<p>Immature males have a mostly black tail with a limited amount of white and their wings have more white than adults'. Immature females' tails lack the black tips on the inner tail feathers, and like immature males also have less white on the tail than adults.

Taxonomie

The black-headed trogon is treated as monotypic by the International Ornithological Committee and BirdLife International's Handbook of the Birds of the World. However, the Clements taxonomy assigns it two subspecies, the nominate T. m. melanocephalus and T. m. illaetabilis.<p>This article follows the monotypic model.

Nom scientifique

Trogon melanocephalus

Autorité

Gould, 1836

Ordre

Trogoniformes

Famille

Trogonidés

Genre

Trogon

Répartition et habitat

The black-headed trogon is found on the Caribbean slope from southern Veracruz in Mexico south through Belize, northern Guatemala, and northern Honduras to central Nicaragua. It is also found on the Pacific slope from El Salvador through southern Honduras and western Nicaragua into northwestern Costa Rica. The species inhabits a variety of forest types including wet and moist tropical forest, pinelands, gallery forest, secondary forest, and dry forest. It favors the forest edges rather than the dense interior and is also found in other semi-open to open landscapes including banana and cacao plantations, gardens, and suburban areas. In elevation it usually is found between sea level and 600 m (2,000 ft) but does occur as high as 1,000 m (3,300 ft)

Migration

Espèce sédentaire

Comportement

Mode de migration: Espèce sédentaire.

Conservation

Tendance de la population: en déclin.

Tendance de la population

en déclin