Yellow-billed Nunbird

Yellow-billed Nunbird

Monasa flavirostris

Silhouette: Matt Wilkins (Photo by Len Blumin) · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability <5% · Rare
at Cordillera Azul National Park
66 Verified sightings at Cordillera Azul National Park From 2019 to 2026
827 Verified sightings across all 8 parks From 2019 to 2026
August Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Yellow-billed Nunbird

The yellow-billed nunbird (Monasa flavirostris) is a species of near-passerine bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru. The yellow-billed nunbird is monotypic.

The yellow-billed nunbird is 23 to 25 cm (9.1 to 9.8 in) long and weighs about 39 g (1.4 oz). The adult is mostly sooty black, with the belly tending to very dark gray and the tail being greenish black. The lesser wing coverts are mostly white and show as white spots on the closed wing. The bill is yellow and noticeably shorter than those of the other members of its genus. Its eye is dark and the feet blackish. Immatures are a slightly duller black than adults and the white areas are not as prominent.

The yellow-billed nunbird is found in two areas of the upper Amazon Basin. One extends from southeastern Colombia through eastern Ecuador into northern Peru. The other includes eastern Peru, northern Bolivia, and western Brazil as far east as the upper Purus River. The species inhabits somewhat open landscapes such as transitional forest, secondary forest, the edges... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Sierra de la Macarena National Park 🇨🇴 Colombia
~10%
2 Cordillera Azul National Park 🇵🇪 Peru
<5%
3 Yasuní National Park 🇪🇨 Ecuador
<5%
4 Cuyabeno Wildlife Reserve 🇪🇨 Ecuador
<5%
5 Manu National Park 🇵🇪 Peru
<5%
6 Tambopata National Reserve 🇵🇪 Peru
<5%
7 Amacayacu National Natural Park 🇨🇴 Colombia
Insufficient data
8 Chingaza National Natural Park 🇨🇴 Colombia
Insufficient data

Quick answers

What are the chances of seeing a Yellow-billed Nunbird in Cordillera Azul National Park?

Under 5% of wildlife watchers report a Yellow-billed Nunbird sighting in Cordillera Azul National Park, based on 66 verified sightings from GBIF citizen-science data.

When is the best time to see Yellow-billed Nunbird in Cordillera Azul National Park?

August has the highest sighting rate for Yellow-billed Nunbird in Cordillera Azul National Park in our monthly data.

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