Formicarius nigricapillus
Silhouette: Abraão B. Leite · PhyloPic
In 3 days ~10%
The black-headed antthrush (Formicarius nigricapillus) is a species of bird in the family Formicariidae. It is found in Colombia, Costa Rica, Ecuador, and Panama. The black-headed antthrush is about 18 cm (7.1 in) long; four individuals weighed 58 to 68 g (2.0 to 2.4 oz). The sexes have the same plumage. Adults of the nominate subspecies have a dark dusky brown to blackish crown. Their face and throat are black with a ring of bluish white bare skin around the eye. Their back, rump, and wings are dark chestnut-brown, their uppertail coverts dark rufescent brown, and their tail black. Their flight feathers have dusky inner edges and a wide cinnamon band at the base. Their upper breast is blackish gray, their belly gray, and their undertail coverts rufous. They have a brown iris, a black bill, and dusky brown legs and feet. Subspecies F. n. destructus has darker and less reddish-tinged upperparts than the nominate.
The black-headed antthrush has a disjunct distribution.... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Utría National Natural Park | 🇨🇴 Colombia | |
| 2 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 3 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | |
| 4 | Farallones de Cali National Natural Park | 🇨🇴 Colombia | |
| 5 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | |
| 6 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | |
| 7 | La Amistad International Park (Panama) | 🇵🇦 Panama |
Rare
Under 5% of wildlife watchers report a Black-headed Antthrush sighting in Tapantí-Macizo de la Muerte National Park on a given day, based on 150 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 287th most-seen of the 467 birds we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
October
In that month about 10% of wildlife watchers report a Black-headed Antthrush in Tapantí-Macizo de la Muerte National Park on a given day, against under 5% in November to September, the lowest months. That is one of Tapantí-Macizo de la Muerte National Park's wettest months, with about 570 mm of rain against 160 mm in February.
3rd of 7
Of the 7 parks where we can rate Black-headed Antthrush sightings, Tapantí-Macizo de la Muerte National Park ranks 3rd at under 5%. The best odds are in Utría National Natural Park (Colombia, about 10%) and Arenal Volcano National Park (Costa Rica, under 5%).
GBIF citizen-science records
It is estimated from how often the Black-headed Antthrush is recorded against all the birds logged in Tapantí-Macizo de la Muerte National Park (150 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.
