Polioptila dumicola
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~30%
The masked gnatcatcher (Polioptila dumicola) is a small songbird in the family Polioptilidae. It is found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. The last subspecies differs in both plumage and voice from the other two and may represent a separate species.
The masked gnatcatcher is 12 to 13 cm (4.7 to 5.1 in) long and weighs 5 to 7 g (0.18 to 0.25 oz), larger than most other gnatcatchers. The nominate male has a large black mask with a thin white line below it. Its forehead, crown, nape, and upperparts are blue-gray. Its tail is mostly black with white outer feathers. Its throat is pale gray fading to whitish on the belly. The nominate female does not have a mask but instead a black crescent down from the eye. Its upperparts are duller and not as bluish. P. d. saturata is darker than the nominate; it is slate gray overall that is lighter on the underside. The P. d. berlepschi male is paler than the nominate, dull gray rather than blue-gray above and white below, and has a narrower mask... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Palmar National Park | 🇦🇷 Argentina | |
| 2 | Iberá National Park | 🇦🇷 Argentina | |
| 3 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 4 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 5 | Emas National Park | 🇧🇷 Brazil | |
| 6 | Chapada dos Guimarães National Park | 🇧🇷 Brazil | |
| 7 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 8 | Iguaçu National Park | 🇧🇷 Brazil | |
| 9 | Iguazú National Park | 🇦🇷 Argentina |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rosario | 🇦🇷 Argentina | |
| 2 | Buenos Aires | 🇦🇷 Argentina | |
| 3 | Asuncion | 🇵🇾 Paraguay | |
| 4 | Goiânia | 🇧🇷 Brazil | |
| 5 | Cordoba | 🇦🇷 Argentina | |
| 6 | Brasilia | 🇧🇷 Brazil | |
| 7 | Montevideo | 🇺🇾 Uruguay | |
| 8 | Belém | 🇧🇷 Brazil | |
| 9 | Campo Grande | 🇧🇷 Brazil | |
| 10 | Porto Alegre | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Masked Gnatcatcher sighting in Belém on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 101st most-seen of the 144 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
February, May, September–October and December
In those months about 10% of wildlife watchers report a Masked Gnatcatcher in Belém on a given day, against under 5% in January, March–April, June–August and November, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Masked Gnatcatcher sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
8th of 11
Of the 11 cities where we can rate Masked Gnatcatcher sightings, Belém ranks 8th at under 5%. The best odds are in Rosario (Argentina, about 60%), Buenos Aires (Argentina, about 50%) and Asuncion (Paraguay, about 40%).
GBIF citizen-science records
It is estimated from how often the Masked Gnatcatcher is recorded against all the birds logged in Belém (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.
