Myrmotherula axillaris
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
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 Utría National Natural Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 123rd most-seen of the 154 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.
March and May
In those months about 20% of wildlife watchers report a White-flanked Antwren in Utría National Natural Park on a given day, against under 5% in July and September–November, the lowest months. April, June and December have too few records to rate.
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.
12th of 25
Of the 25 parks where we can rate White-flanked Antwren sightings, Utría National Natural Park ranks 12th 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%).
GBIF citizen-science records
It is estimated from how often the White-flanked Antwren is recorded against all the birds logged in Utría National Natural Park (7 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.
