Ermitaño Piquicurvo

Identificación

The hook-billed hermit is 12 to 13 cm (4.7 to 5.1 in) long. Males weigh 6 to 9 g (0.21 to 0.32 oz) and females 5.5 to 7 g (0.19 to 0.25 oz). Its upperparts are greenish bronze and the underparts cinnamon. The face has a white supercilium and "moustache" and is otherwise dusky. The tail is metallic bronze with white-tipped outer feathers. Its bill is nearly straight. The sexes have essentially the same plumage though the female's underparts are somewhat paler than the male's.

Taxonomía

The hook-billed hermit was for a time placed in genus Ramphodon, but morphological characteristics place it firmly in Glaucis. It is monotypic.

Nombre científico

Glaucis dohrnii

Autoridad

(Bourcier & Mulsant, 1852)

Orden

Caprimulgiformes

Familia

Trochilidae

Género

Glaucis

Distribución y hábitat

The hook-billed hermit is found only at a few sites in the southeastern Brazilian states of Bahia and Espírito Santo in Neotropical realm forest climates. It probably formerly occurred in Minas Gerais and possibly Rio de Janeiro states, though in the latter it is known only from trade skins that might have originated elsewhere. It inhabits the understory of inland primary and littoral forests, usually along streams. It favors areas with abundant Heliconia plants. In elevation it ranges from sea level to 500 m (1,600 ft).

Migración

Resident species

Comportamiento

The hook-billed hermit is thought to be sedentary or a non migration period lifestyle. However, the few records from any one site make that determination difficult.<p>Like other hermit hummingbirds, the hook-billed hermit is a "trap-line" feeder, visiting a circuit of flowering plants. It feeds on nectar at Heliconia and other plants and also on small arthropods, but details are lacking.<p>The hook-billed hermit's breeding season is believed to span from September to February. The nest is made from plant material and cobwebs under the tip of a long drooping leaf. Its clutch is two eggs.<p>The hook-billed hermit's song is described as similar to those of the rufous-breasted hermit (G. hirsutus), a "rapid 'seep-seep-seep'", and the saw-billed hermit (Ramphodon naevius), "a descending series...of 'seee' notes."

Conservación

Tendencia poblacional

declining