Fulica ardesiaca
Silhouette: Andy Wilson · PhyloPic
In 3 days ~70% in a week >90%
The Andean coot (Fulica ardesiaca), also known as the slate-colored coot, is a species of bird in subfamily Rallinae of family Rallidae, the rails, gallinules, and coots. It is found in Argentina, Bolivia, Chile, Colombia, Ecuador, and Peru.
They have a somewhat tortuous taxonomic history. The nominate was at one time treated as a subspecies of the American coot (F. americana) and the other as a separate species. Later they were both included as subspecies of the American coot. The current treatment has been widely accepted since the 1980s, but there is some speculation that the subspecies might be full species.
The Andean coot is 40 to 43 cm (16 to 17 in) long. It has two color morphs that are present in both subspecies. Both morphs are mostly slaty gray that is blacker on the head and neck. Their secondaries usually have white tips. One morph has a chrome yellow bill that is paler yellow and sometimes green on the tip, a deep chesnut frontal shield, and green legs and feet. The other has a white bill, a white to orange-yellow frontal shield, and slaty... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lauca National Park | 🇨🇱 Chile |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cochabamba | 🇧🇴 Bolivia | |
| 2 | Lima | 🇵🇪 Peru | |
| 3 | La Paz | 🇧🇴 Bolivia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Bioparque Municipal Vesty Pakos | 🇧🇴 Bolivia | |
| 2 | Parque de las Leyendas | 🇵🇪 Peru | |
| 3 | Agroflori Parque de las Aves | 🇧🇴 Bolivia |
Likely
About 40% of wildlife watchers report a Slate-colored Coot sighting in Lauca National Park on a given day, based on 324 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 35th most-seen of the 112 birds we can rate there. Over three days the chance rises to about 70%, and over a week to over 90%, if each day is a fresh chance.
January and February
In those months about 50% of wildlife watchers report a Slate-colored Coot in Lauca National Park on a given day, against about 20% in May, the lowest month. Those are among Lauca National Park's wettest months, with about 150 mm of rain a month against almost none in May.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Slate-colored Coot sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Lauca National Park, in our data
Lauca National Park is the only park on Wallace's Line with enough records to rate Slate-colored Coot sightings: about 40% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Slate-colored Coot is recorded against all the birds logged in Lauca National Park (324 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.
