Schuppenkehl-Laubwender

Bestimmung

The rufous-breasted leaftosser is one of the larger members of genus Sclerurus. It is 17.5 to 20.1 cm (6.9 to 7.9 in) long and weighs 30 to 41 g (1.1 to 1.4 oz). The sexes are alike. The nominate subspecies has a dark brownish face with a somewhat grizzled appearance. Its crown is very dark brown with blackish scalloping. Its back is rich dark brown, its rump bright chestnut, and its uppertail coverts chestnut with reddish brown tips. Its wings are dark reddish brown and its tail is sooty blackish with some faint red-brown. Its throat is pale grayish white with dusky scaling and its upper breast dull rufescent brown with a scaly appearance. It has a wide ochraceous chestnut band across the middle of its breast. Its belly and flanks are dark olivaceous brown with chestnut tones and its undertail coverts are similar with richer chestnut. Its iris is dark brown, its maxilla black, its mandible black with a whitish base, and its legs and feed blackish brown. Juveniles resemble adults but are overall darker.<p>Subspecies S. s. cearensis is slightly smaller than the nominate. It has a clear white unscaled throat and slightly brighter upper- and underparts.

Taxonomie

The rufous-breasted leaftosser's taxonomy is unsettled. The International Ornithological Committee (IOC) and the Clements taxonomy assign it two subspecies, the nominate S. s. scansor (Ménétries, 1835) and S. s. cearensis (Snethlage, E, 1924). BirdLife International's Handbook of the Birds of the World (HBW) treats the taxa as two separate species, the rufous-breasted leaftosser sensu stricto and the Ceara leaftosser S. cearensis. The South American Classification Committee of the American Ornithological Society also does not recognize the "Ceara leaftosser" but does not address subspecies within the rufous-breasted.<p>The rufous-breasted and grey-throated leaftosser (S. albigularis) are sister species.<p>This article follows the one species, two-subspecies model.

Wissenschaftlicher Name

Sclerurus scansor

Autorität

(Ménétriés, 1835)

Ordnung

Passeriformes

Familie

Furnariidae

Gattung

Sclerurus

Verbreitung und Lebensraum

The nominate subspecies of the rufous-breasted leaftosser is found from central Brazil's Mato Grosso, Goiás, and Minas Gerais states south into Rio Grande do Sul and through eastern Paraguay into northeastern Argentina's Misiones Province. It mostly inhabits lowland tropical rainforest and montane evergreen forest, and also occurs in mature secondary forest. In elevation it ranges from near sea level to 1,600 m (5,200 ft).<p>The "Ceara" subspecies of the rufous-breasted leaftosser is found separately in northeastern Brazil between Ceará and Bahia. It inhabits the interior understorey in enclaves of brejos de altitude (humid relict forest) within the drier Caatinga. In elevation it ranges between 550 and 1,050 m (1,800 and 3,400 ft).

Zugverhalten

Standvogel

Verhalten

Zugverhalten: Standvogel.

Schutzstatus

Bestandstrend: rückläufig.

Bestandstrend

rückläufig