Formicarius colma
Silhouette: Abraão B. Leite · PhyloPic
In 3 days ~20% in a week ~40%
The rufous-capped antthrush (Formicarius colma) is a small species of bird in the family Formicariidae located in the order Passeriformes. It is considered to be uncommon but widespread, found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The rufous-capped antthrush is typically found inhabiting the shady floor of tall, humid forests on solid ground, and is occasionally spotted in transitional forests (várzea) and savanna forests (Suriname). The rufous-capped antthrush was first described by the French polymath Georges-Louis Leclerc, Comte de Buffon in his 1779 journal Histoire Naturelle des Oiseaux (Natural History, General and Particular, with a Description of the King's Cabinet) from a specimen collected in Cayenne, French Guiana and was further engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle (Illuminated Planks of Natural History) which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. Neither Buffon's description nor Martinet's drawing included a scientific name, however, Dutch naturalist Pieter Boddaert coined the binomial name... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru | |
| 2 | Brownsberg Nature Park | 🇸🇷 Suriname | |
| 3 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 4 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 5 | Manu National Park | 🇵🇪 Peru | |
| 6 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 7 | Yasuní National Park | 🇪🇨 Ecuador | |
| 8 | Itatiaia National Park | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Rufous-capped Antthrush sighting in Serra dos Órgãos National Park on a given day, based on 48 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 178th most-seen of the 336 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Rufous-capped Antthrush in Serra dos Órgãos National Park on a given day, against under 5% in March–April, June and October–December, the lowest months. That is one of Serra dos Órgãos National Park's driest months, with about 50 mm of rain against 310 mm in November.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Rufous-capped 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.
Among the best
Of the 8 parks where we can rate Rufous-capped Antthrush sightings, Serra dos Órgãos National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Tambopata National Reserve (Peru, about 10%) and Brownsberg Nature Park (Suriname, about 10%).
GBIF citizen-science records
It is estimated from how often the Rufous-capped Antthrush is recorded against all the birds logged in Serra dos Órgãos National Park (48 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.
