Myrmotherula axillaris
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
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 |
Rare
Under 5% of wildlife watchers report a White-flanked Antwren sighting in Niterói on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 83rd most-seen of the 116 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report a White-flanked Antwren in Niterói on a given day, against under 5% in July to May, the lowest months. That is one of Niterói's driest months, with about 50 mm of rain against 230 mm in December.
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.
3rd of 3
Of the 3 cities where we can rate White-flanked Antwren sightings, Niterói ranks 3rd at under 5%. The best odds are in Rio de Janeiro (Brazil, about 10%) and João Pessoa (Brazil, under 5%).
GBIF citizen-science records
It is estimated from how often the White-flanked Antwren is recorded against all the birds logged in Niterói (14 verified sightings), 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.
