Fulica leucoptera
Silhouette: Andy Wilson · PhyloPic
In 3 days ~10% in a week ~20%
The white-winged coot (Fulica leucoptera) is a species of bird in the subfamily Rallinae of the family Rallidae. It is found in Argentina, Bolivia, Brazil, Chile, Paraguay, Uruguay, and the Falkland Islands. The white-winged coot is monotypic.
The white-winged coot is 35 to 43 cm (14 to 17 in) long and weighs about 400 to 600 g (14 to 21 oz). The sexes are alike. Adults have a yellow to greenish yellow bill and a small yellow to orange-yellow frontal shield, though these colors may further vary. Their legs and feet are pale sea green to yellow-green and have blackish toes and joints. Their plumage is slaty gray that is blacker on the head and neck. They have white undertail coverts, and wide white tips on the secondaries provide the English name. Immature birds have a dusky olive bill, greenish gray legs and feet, gray-brown upperparts, and paler underparts than adults. Juveniles are dark drab gray with dusky mottling on a white head and neck.
The white-winged coot is found in most of southern South America, in northern to central Chile and separately from eastern and southern Bolivia, Paraguay, and far... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Torres del Paine National Park | 🇨🇱 Chile | |
| 2 | Nahuel Huapi National Park | 🇦🇷 Argentina |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 2 | Buenos Aires | 🇦🇷 Argentina | |
| 3 | Cordoba | 🇦🇷 Argentina | |
| 4 | Montevideo | 🇺🇾 Uruguay | |
| 5 | São Paulo | 🇧🇷 Brazil | |
| 6 | Santiago | 🇨🇱 Chile |
Rare
Under 5% of wildlife watchers report a White-winged Coot sighting in Nahuel Huapi National Park on a given day, based on 22 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 77th most-seen of the 111 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
May
In that month about 10% of wildlife watchers report a White-winged Coot in Nahuel Huapi National Park on a given day, against under 5% in June to April, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most White-winged Coot sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate White-winged Coot sightings, Nahuel Huapi National Park ranks 2nd at under 5%. The best odds are in Torres del Paine National Park (Chile, about 10%).
GBIF citizen-science records
It is estimated from how often the White-winged Coot is recorded against all the birds logged in Nahuel Huapi National Park (22 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.
