Family Typical Antbirds (Thamnophilidae)


Allpahuayo Antbird (Percnostola arenarum)


French: Alapi du varillal German: Einfarb-Ameisenvogel Spanish: Hormiguero del Allpahuayo

Percnostola arenarum

M. L. Isler et al.

, 2002,

Mishana, Loreto, Peru


Closely related to P. rufifrons#R#R. Date of publication was delayed from 2001#R. Monotypic.


Local in NE Peru N of R Marañón (R Morona and R Nanay drainages).

Descriptive notes

14–15 cm; 22–24 g. Male is dark grey with black throat, wings and tail blackish-grey, wing-coverts tipped white; underwing-coverts grey; iris grey. Differs from... read more


Loudsong a rapidly delivered (too fast to count), decelerating series (e.g. 17 notes, 3·3... read more


Understorey of lowland evergreen forest of type known as “varillal”, a very dense and... read more

Food and feeding

Feeds on insects, probably also spiders. Partners, individuals, or family groups forage mostly 0–1 m above ground, and apart from... read more


Nothing known.


Presumed resident.

Status and conservation

VULNERABLE. Not described until 2001. Barring its discovery elsewhere, this species would appear to occupy one of the most specialized habitats in the smallest geographical... read more

Recommended citation

Zimmer, K., Isler, M.L. & de Juana, E. (2020). Allpahuayo Antbird (Percnostola arenarum). 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 on 24 February 2020).