Family New World Warblers (Parulidae)

Least Concern

Three-banded Warbler (Basileuterus trifasciatus)


Taxonomy

French: Paruline trifasciée German: Cayamarcawaldsänger Spanish: Reinita de Cajamarca
Taxonomy:

Basileuterus trifasciatus

Taczanowski

, 1880,

Callacate, Cajamarca, Peru

.

Has been considered conspecific with B. culicivorus; one set of genetic data indicates that B. trifasciatus and B. tristriatus are sister-species, and that they are sister to B. culicivorus and B. hypoleucus#R, whereas a more detailed phylogenetic study of the B. tristriatus group found that the latter comprises ten clades, one pertaining to B. trifasciatus, which is sister to B. tristriatus tacarcunae#R; integrative reconciliation of all evidence needed to resolve the situation. Race nitidior perhaps not distinguishable from nominate#R. Two subspecies recognized.

Subspecies and Distribution
  • B. t. nitidior Chapman, 1924 – SW Ecuador (El Oro and Loja) and adjacent NW Peru (Tumbes).
  • B. t. trifasciatus Taczanowski, 1880 – NW Peru (Piura S to La Libertad).
  • Descriptive notes

    12·5 cm; 8·5–11 g. Nominate race has pale grey central crownstripe (may have faint yellowish wash in worn plumage) bordered laterally with black, broad... read more

    Voice

    Song a warbling and pulsating trill, rising slightly in pitch; usual call a sharp "tsit... read more

    Habitat

    Submontane and montane rainforest and forest edge, streamside vegetation in dry forests, riparian... read more

    Food and feeding

    Probably feeds mainly, if not entirely, on invertebrates. At one nest, various arthropods recorded as sole food source. Forages mainly by... read more

    Breeding

    Breeds in Jan–Apr rainy season, eggs in Feb–Mar, recently fledged young seen in late Apr and early May. Nest a domed structure... read more

    Movements

    Sedentary.

    Status and conservation

    Not globally threatened. Restricted-range species: present in Tumbesian Region EBA. Uncommon to locally fairly common in SW Ecuador and fairly common in NW Peru. No... read more

    Recommended citation

    Curson, J. (2019). Three-banded Warbler (Basileuterus trifasciatus). 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/61550 on 23 January 2019).