Saturnine Antshrike

Identificazione

The saturnine antshrike is 13.5 to 14.5 cm (5.3 to 5.7 in) long and weighs 19 to 21 g (0.67 to 0.74 oz). Adult males of the nominate subspecies have darkish gray upperparts with a white patch between their scapulars. Their wings are darkish gray with white edges to feathers at the bend and white tips on the coverts. Their tail is darkish gray with small white tips on the feathers. Their throat and upper breast are black and the rest of their underparts darkish gray with usually some white edges on the belly feathers. Adult females have olive-brown upperparts with a rufescent tinge. Their wings and tail are rufous. Their throat is white, their breast olive, and the rest of their underparts deep tawny-buff. Males of subspecies T. s. huallagae have less black on their throat than the nominate; females have gray spots on their throat and a darker breast than the nominate.>

Tassonomia

The saturnine antshrike was described by the Austrian ornithologist August von Pelzeln in 1868 and given the binomial name Thamnophilus saturninus. During the twentieth century several authors placed it in genus Dysithamnus and treated it and what is now the dusky-throated antshrike (T. ardesiacus) as conspecific. The two now are considered a superspecies.<p>The saturnine antshrike has two subspecies, the nominate T. s. saturninus (Pelzeln, 1868) and T. s. huallagae (Cory, 1916).

Nome scientifico

Thamnomanes saturninus

Autorità

(Pelzeln, 1868)

Ordine

Passeriformi

Famiglia

Thamnophilidae

Genere

Thamnomanes

Areale e habitat

Subspecies T. s. huallagae of the saturnine antshrike is the more western of the two. It is found south of the Amazon and Marañón rivers in northeastern Peru and into southwestern Amazonian Brazil's Acre state. The nominate subspecies is found in south-central Amazonian Brazil south of the Amazon from Acre east to the Tapajós and Teles Pires rivers and south to Rondônia and northern Mato Grosso, and into extreme northeastern Bolivia. The species primarily inhabits the understorey of terra firme evergreen forest and occurs less often in várzea forest. In elevation it occurs mostly below 300 m (1,000 ft) but reaches 650 m (2,100 ft) in Bolivia.

Migrazione

Specie stanziale

Comportamento

Comportamento migratorio: Specie stanziale.

Conservazione

Tendenza della popolazione: stabile.

Tendenza della popolazione

stabile