Agachadiza Imperial

Identificación

This 29–31 cm (11–12 in) long snipe has a stocky body and relatively short legs for a wader. Its adult plumage is dark rufous brown except for the lower belly and undertail, which are white with heavy brown barring. The grey bill is long, straight and fairly robust, and the legs and feet are grey. The sexes are similar. The juvenile plumage is unknown, but in most snipes species, young birds differ from adults only in showing pale fringes on the wing coverts.<p>In flight, the imperial snipe looks heavy, broad-winged and short-tailed, and the banded belly contrasts with the dark breast and underwing. It has a shatteringly loud raucous song in its display flight, starting with single notes and moving on to double or triple notes.<p>Compared with other snipes with an overlapping range, the imperial snipe is obviously larger than the Magellan snipe, which has clear pale stripes on its back and lacks barring on the lower belly. The race which occurs in the Andes, Gallinago paraguaiae andina also has yellow legs.<p>The Andean snipe, Gallinago jamesoni, is similar in build to the imperial snipe, but is paler on the throat and underwings, and has a less contrasted lower belly.

Taxonomía

Nombre científico

Gallinago imperialis

Autoridad

Sclater, PL & Salvin, 1869

Orden

Charadriiformes

Familia

Escolopácidos

Género

Gallinago

Distribución y hábitat

Migración

Resident species

Comportamiento

The imperial snipe occurs around the tree-line at 2,745–3,700 m (9,006–12,139 ft) altitude in mosaic habitats consisting of a mixture of bogs, mossy areas, moist elfin forest, tree-ferns and tall grass. Little is known about its habits and it is mostly observed when displaying.<p>The dawn and dusk aerial display involves flying high in circles performing the extremely loud song. This is followed by a dive during which the bird makes a drumming sound caused by the vibrations of its modified outer tail feathers.<p>The imperial snipe's diet is unknown, but other snipe species forage for insects and worms by probing with their long bills.

Conservación

Tendencia poblacional

declining