Formicarius analis
Silhouette: Abraão B. Leite · PhyloPic
In 3 days <5%
The black-faced antthrush (Formicarius analis) is a species of passerine bird in the family Formicariidae. It is found in Central America from Honduras through Panama, on Trinidad, and in every mainland South American country except Argentina, Chile, Paraguay, and Uruguay.
The black-faced antthrush was formally described in 1837 by the French naturalists Alcide d'Orbigny and Frédéric de Lafresnaye from a specimen collected in Bolivia. They coined the binomial name Myothera analis. The specific epithet is from the Modern Latin analis meaning "relating to the undertail-coverts of the vent". In 1858 it was moved to genus Formicarius that had been introduced by the Dutch naturalist Pieter Boddaert in 1783.
The black-faced antthrush has these 11 subspecies: The first five subspecies on the above list are treated... Wikipedia →
Rare
Under 5% of wildlife watchers report a Black-faced Antthrush sighting in Arenal Volcano National Park on a given day, based on 60 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 390th most-seen of the 503 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black-faced Antthrush in Arenal Volcano National Park on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Black-faced Antthrush sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
22nd of 26
Of the 26 parks where we can rate Black-faced Antthrush sightings, Arenal Volcano National Park ranks 22nd at under 5%. The best odds are in Tambopata National Reserve (Peru, about 30%), Corcovado National Park (Costa Rica, about 30%) and Soberanía National Park (Panama, about 30%).
GBIF citizen-science records
It is estimated from how often the Black-faced Antthrush is recorded against all the birds logged in Arenal Volcano National Park (60 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
