South-eastern Colombia (southern from southern Meta and western Vaupés), eastern Ecuador, eastern Peru, Amazonian Brazil (mostly south of R Amazon, east to lower R Tapajós) and northern Bolivia (Pando, La Paz).
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).
Chestnut-winged Hookbill (Ancistrops strigilatus) [XC258191]
by Caio Brito from Pastaza: Kapawi area, left bank R\u00edo Pastaza, Ecuador (alarm call)
Chestnut-winged Hookbill (Ancistrops strigilatus) [XC556129]
by Jacob Wijpkema from Ramal do Igarap\u00e9 do 12, Brazil (canto)
Subspecies
No subspecies.
Plumage and distribution suggest that closest relative of genus is Philydor.
Proposed subspecies cognitus, from lower R Tapajós (Brazil), described as more ochraceous and paler above, more buffy below, particularly throat, which has fewer dusky spots, with supercilium more buff. However, these characters bridged by individual variation in series from farther west.
The following 2 subspecies are recognised:
strigilatus (Spix, 1825) - Western, central Amazonia.
cognitus Griscom & Greenway Jr, 1937 - Central Brazil (lower Rio Tapajós).
BirdLife International Species Factsheet