Myrmotherula axillaris
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~60%
The white-flanked antwren (Myrmotherula axillaris) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found from Honduras to Panama in Central America, in every mainland South American country except Argentina, Chile, Paraguay, and Uruguay, and on Trinidad.
The white-flanked antwren was described by the French ornithologist Louis Pierre Vieillot in 1817 and given the binomial name Myrmothera axillaris. The white-flanked antwren's taxonomy is unsettled. The International Ornithological Committee (IOC) and BirdLife International's Handbook of the Birds of the World assign it these five subspecies:
The Clements taxonomy adds a sixth subspecies, M. a. luctuosa, that the other two systems treat as a separate species, the silvery-flanked antwren (M. luctuosa). The North and South American Classification Committees of the American Ornithological Society also include the silvery-flanked taxon within the white-flanked antwren. Clements does recognize... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rio de Janeiro | 🇧🇷 Brazil | |
| 2 | João Pessoa | 🇧🇷 Brazil | |
| 3 | Niterói | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a White-flanked Antwren sighting in Bastimentos Island National Marine Park on a given day, based on 403 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 108th most-seen of the 375 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
January and May
In those months about 20% of wildlife watchers report a White-flanked Antwren in Bastimentos Island National Marine Park on a given day, against about 10% in February–April and June–December, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most White-flanked Antwren sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
7th of 25
Of the 25 parks where we can rate White-flanked Antwren sightings, Bastimentos Island National Marine Park ranks 7th at about 10%. The best odds are in Serra dos Órgãos National Park (Brazil, about 30%), Soberanía National Park (Panama, about 20%) and Brownsberg Nature Park (Suriname, about 20%).
Same family: Thamnophilidae
The closest relatives of the White-flanked Antwren that you can see in Bastimentos Island National Marine Park (family Thamnophilidae, Typical Antbirds) are Chestnut-backed Antbird (about 40%), Western Slaty-Antshrike (about 40%) and Dot-winged Antwren (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-flanked Antwren is recorded against all the birds logged in Bastimentos Island National Marine Park (403 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.
