Tanagra formichiera corona rossa

Identificazione

The red-crowned ant tanagers is 17–19 cm (6.7–7.5 in) long and weighs 28–43 g (0.99–1.52 oz) (male) or 23–37 g (0.81–1.31 oz) (female). The adult male of the nominate subspecies is dull reddish brown with a brighter red throat and breast. The black-bordered scarlet crown stripe is raised when the bird is excited. The female is yellowish brown with a yellow throat and yellow-buff crown stripe.<p>It is a shy but noisy bird. Its call is a rattle followed by a musical pee-pee-pee.

Tassonomia

The red-crowned ant tanager was formally described in 1817 by the French ornithologist Louis Pierre Vieillot. He placed it in the genus Saltator (which he misspelled as Staltator) and coined the binomial name Saltator rubicus. He specified the locality as Paraguay. The specific epithet is from Medieval Latin rubicus meaning "reddish". The red-crowned ant tanager is now placed in the genus Habia that was introduced in 1840 by Edward Blyth.<p>There are 17 recognised subspecies:

Nome scientifico

Habia rubica

Autorità

(Vieillot, 1817)

Ordine

Passeriformi

Famiglia

Cardinalidi

Genere

Habia

Areale e habitat

This bird is a resident breeder from Mexico south to Paraguay and northern Argentina, and on Trinidad. Common in its wide range, it is not considered threatened by the IUCN. It favors the middle stratum of the forest as well as undergrowth rich in ferns, shrubs and herbs.

Migrazione

Resident species

Comportamento

These birds are found in pairs or family groups. They eat mainly arthropods, but berries are also taken. In Central America and Trinidad they frequently attend army ant columns, and in the lowland forests of southeastern Brazil they may be a nuclear species of understory mixed-species feeding flocks – though further uphill, e.g. in the Serra de Paranapiacaba, they seem to join such flocks only rarely and prefer to follow the ants on their own. They also follow South American coatis (Nasua nasua) on their feeding excursions, namely in the dry season. In both cases, they are commensales, snatching invertebrate prey startled by the ants or coatis.<p>The shallow cup nest is built by the female. It is usually placed in a sapling or tree fern near a stream. The normal clutch is two to three brown-blotched white eggs. These are incubated by the female for 13–14 days prior to hatching. The chicks are fed by both parents and leave the nest when about ten days old, before they are able to fly. They then hop around and hide in thick foliage.

Conservazione

Tendenza della popolazione

declining