Formicivora grisea
Silhouette: Sheatherius · PhyloPic
In 3 days ~50% in a week ~80%
The southern white-fringed antwren (Formicivora grisea) is an insectivorous bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Brazil, Colombia, French Guiana, Guyana, Suriname, and Venezuela.
The southern white-fringed antwren was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in his Histoire Naturelle des Oiseaux in 1775 from a specimen collected in Cayenne, French Guiana. The bird was also illustrated in a hand-colored plate engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch naturalist Pieter Boddaert coined the binomial name Turdus griseus in his catalogue of the Planches Enluminées. The southern white-fringed antwren is now placed in the genus Formicivora that was introduced by the English naturalist William Swainson in 1824. The generic name combines the Latin words formica for "ant" and -vorus "eating" from vorare "to devour". The specific epithet grisea... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Southern White-fringed Antwren sighting in São Luís on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 49th most-seen of the 74 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
June
In that month about 50% of wildlife watchers report a Southern White-fringed Antwren in São Luís on a given day, against about 10% in April and July–January, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Southern White-fringed 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.
Yes
Of the 5 cities where we can rate Southern White-fringed Antwren sightings, São Luís has the highest daily chance: about 20%. Next come Belém (Brazil, about 10%) and Fortaleza (Brazil, under 5%).
Same order: Passeriformes
The closest relatives of the Southern White-fringed Antwren that you can see in São Luís (order Passeriformes, Perching Birds) are Great Kiskadee (about 80%), Tropical Kingbird (about 70%) and Bananaquit (about 50%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Southern White-fringed Antwren is recorded against all the birds logged in São Luís (11 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.
