Family Puffbirds (Bucconidae)

Least Concern

Yellow-billed Nunbird (Monasa flavirostris)


French: Barbacou à bec jaune German: Gelbschnabeltrappist Spanish: Monja piquigualda

Monasa flavirostris


, 1850,





Amazon Basin in SE Colombia and E Ecuador S through E Peru, W Brazil (E to R Purus) and N Bolivia.

Descriptive notes

23–25 cm; 39 g. Sooty-black overall, with lesser wing-coverts mainly white, lower underparts very dark grey; underwing-coverts white, axillaries and bases of remiges... read more


Song consists of full melodious lengthy phrases in choruses, typically including a frequently... read more


Occupies subcanopy and understorey of humid forest, transitional forest, and second growth or... read more

Food and feeding

Details of diet not recorded, but insects constitute probably the main prey, as in other nunbirds. Appears to forage more in air, less at... read more


No information.


Presumably resident.

Status and conservation

Not globally threatened. Considered to be rather local in Colombia, although observations there suggest that it is extremely easy to overlook; occurs in Amacayacu National... read more

Recommended citation

Rasmussen, P.C., Collar, N. & Bonan, A. (2020). Yellow-billed Nunbird (Monasa flavirostris). 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 9 April 2020).