Sharp-billed Canastero (Asthenes pyrrholeuca)

Sharp-billed Canastero

Asthenes pyrrholeuca

Least Concern

Overview

The sharp-billed canastero, also known as the lesser canastero, is a small bird species belonging to the ovenbird family Furnariidae. It is currently assessed as Least Concern by the IUCN and is considered fairly common to abundant across its range.

Identification

  • Length of 14 to 15 cm with a pointed bill that is thinner than most other canasteros.
  • Plumage features a gray-brown face with a pale supercilium, a dull brown crown, and rufescent brown wings.
  • Throat is rufous to tawny with dark-tipped pale streaks, while the breast is pale grayish brown with faint streaks.
  • Song consists of a two-note trill described as 'tsee-ee-ee-ee, tsee-ee-ee-ee', accompanied by a rising 'sweep' contact call.

Habitat

Found in Argentina, Bolivia, Chile, Paraguay, and Uruguay, with rare occurrences as a vagrant in Brazil. It inhabits semi-arid to arid landscapes such as shrub-steppe, scrublands, and grasslands, mostly ranging from sea level to 2,000 m but locally reaching 3,000 m.

Diet

Feeds primarily on arthropods, usually foraging singly or in pairs by gleaning prey from foliage. Ground foraging is rare.

Did you know?

The species is a partial migrant, with portions of the population moving from the south to beyond the northern limit of the breeding range for the austral winter.

Sources