Family Ovenbirds (Furnariidae)

Least Concern

White-chinned Thistletail (Asthenes fuliginosa)


Taxonomy

French: Synallaxe à menton blanc German: Graubauchcanastero Spanish: Piscuiz barbiblanco
Taxonomy:

Synnalaxis [sic] fuliginosus

Lafresnaye

, 1843,

Colombia = Bogotá

.

See A. harterti. Almost certainly paraphyletic with regard to A. griseomurina (distribution of which it brackets to N and S), which is very probably more closely related to a parapatric race (probably nominate) of present species than are latter’s N and S groups to each other; nominate race shares with griseomurina a white eyering not found in S races peruviana and plengei. Diagnosability of fumigata doubted by some authors, but specimens are readily distinguishable by back colour alone. Four subspecies recognized.

Subspecies and Distribution
  • A. f. fuliginosa (Lafresnaye, 1843) – W Venezuela (SW Táchira), Colombia (E Andes S to Cundinamarca) and Ecuador (S on W slope to Pichincha and on E slope to NW Morona-Santiago).
  • A. f. fumigata (Borrero, 1960) – C Andes of Colombia (S Caldas S to Nariño).
  • A. f. peruviana (Cory, 1916) – Andes of N Peru (Amazonas).
  • A. f. plengei (O’Neill & T. A. Parker, 1976) – Andes of C Peru (San Martín S to Pasco).
  • Descriptive notes

    18–20 cm; 14–20 g. Largest thistletail. Nominate race has inconspicuous greyish-tawny supercilium behind eye, whitish eyering, blackish to dark brown lores and... read more

    Voice

    Song a high-pitched, weak, slightly accelerating and ascending trill that lasts c. 2–3... read more

    Habitat

    Páramo grassland and elfin forest; dense undergrowth in timber-line ecotone and... read more

    Food and feeding

    Mostly arthropods, but small seeds also recorded in diet. Forages singly or in pairs, rarely in mixed-species flocks. Gleans items from... read more

    Breeding

    Presumably monogamous. Nest a ball of moss, grass and plant down, placed near ground in grass. Clutch 2 eggs. No further information.

    Movements

    Resident.

    Status and conservation

    Not globally threatened. Generally fairly common in appropriate habitat. Linear nature of its habitat means that total population likely to be rather small; also, timber-line... read more

    Recommended citation

    Remsen, J.V., Jr (2019). White-chinned Thistletail (Asthenes fuliginosa). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/56417 on 18 August 2019).