Synallaxe de Junin

Identification

The Junin canastero is about 17.5 to 18 cm (6.9 to 7.1 in) long; one speciment weighed 22 g (0.78 oz). The sexes have the same plumage. Adults have a narrow buff supercilium on an otherwise ochraceous brown face. Their crown is black with orange brown streaks. Their nape and upper back are black with pale buff streaks. Their lower back, rump, and uppertail coverts are medium brown or olive brown with black and buff streaks. Their wing coverts are olive brown with black and buff streaks. Their outer flight feathers are rufous with reddish brown edges and the inner ones dusky brown with olive brown edges; all have dusky tips. Their central pair of tail feathers are dusky brown, the next pair have dusky brown inner webs and rufous outer webs with dusky edges, and the other three pairs are rufous with a black line on the outer web and black and dusky mottling on the inner web. Their chin is ochraceous buff. Their breast and belly are pale creamy brown with faint tawny olive streaks on the breast. Their flanks are tawny olive with buffy white streaks and their vent area is tawny. Their iris is dark brown, their maxilla horn, their mandible grayish pink, and their legs and feet olive.

Taxonomie

The Junin canastero is monotypic. It and the scribble-tailed canastero (A. maculicauda) have at times been suggested as subspecies of the many-striped canastero (A. flammulata). Genetic data show the three to be separate but closely related sister species. In central Peru the Junin canastero's range slightly overlaps that of the many-striped canastero, and hybrids of the two species are known from that zone.

Nom scientifique

Asthenes virgata

Autorité

(Sclater, PL, 1874)

Ordre

Passériformes

Famille

Furnariidés

Genre

Asthenes

Répartition et habitat

The Junin canastero has a disjunct distribution in central and southern Peru. It is found where the departments of Junín, Pasco, and Lima meet and also from Ayacucho department through Cuzco and Apurímac departments slightly into Puno department. There are scattered sightings between these two population centers.<p>The Junin canastero primarily inhabits humid landscapes with tall bunch grass, sometimes those with scattered bushes and near stands of polylepis. It also sometimes occurs in rocky areas of bunchgrass without bushes or trees. In elevation it ranges between 3,300 and 4,600 m (10,800 and 15,100 ft).

Migration

Espèce sédentaire

Comportement

Mode de migration: Espèce sédentaire.

Conservation

Tendance de la population

unknown