Dryolimnas cuvieri
Silhouette: Sheatherius · PhyloPic
In 3 days ~80% in a week >90%
The white-throated rail (Dryolimnas cuvieri) or Cuvier's rail is a species of bird in the family Rallidae. It is a fairly large rail, and has a flightless subspecies. The white-throated rail measures 30–33 cm (12–13 in) in length. Males are larger than females. In the nominate subspecies, D. c. cuvieri, males weigh 276 g (9.7 oz) while the female weighs 258 g (9.1 oz). Another subspecies, D. c. aldabranus, is smaller and paler in coloration, weighing 176 g (6.2 oz) in females and 189 g (6.7 oz) in males. This subspecies is flightless. Generally, the white-throated rail is a fairly large rail with a dusky abdomen and thighs with white on its throat and undertail-coverts.
It is resident in Madagascar and breeds in the Seychelles, particularly on Aldabra Island. The nominate subspecies is found in Madagascar. A flightless subspecies (sometimes considered a distinct species), Dryolimnas (cuvieri) aldabranus (Aldabra rail), inhabits Aldabra, while the semi-flightless subspecies D. c. abbotti (Assumption Island rail) from Assumption Island went extinct in the early 20th century due to introduced predators. A fourth extinct flightless... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mantadia National Park | 🇲🇬 Madagascar | |
| 2 | Ankarafantsika National Park | 🇲🇬 Madagascar | |
| 3 | Ranomafana National Park | 🇲🇬 Madagascar |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Antananarivo | 🇲🇬 Madagascar |
Likely
About 40% of wildlife watchers report a White-throated Rail sighting in Antananarivo on a given day, based on 348 verified sightings from GBIF citizen-science data. It is the 22nd most-seen of the 69 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
November
In that month about 60% of wildlife watchers report a White-throated Rail in Antananarivo on a given day, against about 20% in May, the lowest month.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most White-throated Rail sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Antananarivo, in our data
Antananarivo is the only city on Wallace's Line with enough records to rate White-throated Rail sightings: about 40% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the White-throated Rail is recorded against all the birds logged in Antananarivo (348 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.
