Anurolimnas viridis
Silhouette: T. Michael Keesey (vectorization) and HuttyMcphoo (photography) · PhyloPic
In 3 days ~10%
The russet-crowned crake (Rufirallus viridis) is a species of bird in subfamily Rallinae of family Rallidae, the rails, gallinules, and coots. It is found in Bolivia, Brazil, Colombia, Ecuador, the Guianas, Paraguay, Peru, and Venezuela.
The russet-crowned crake was formally described in 1776 by the German zoologist Philipp Statius Müller under the binomial name Rallus viridis. Müller based his account on a plate of the "Râle de Cayenne" that had been published to accompany the Comte de Buffon's Histoire Naturelle des Oiseaux. The russet-crowned crake is now placed in the genus Rufirallus that was introduced in 1856 by the French naturalist Charles Lucien Bonaparte. The genus name combines the Latin rufus meaning "rufous" with the genus Rallus that had been introduced by Carl Linnaeus in 1758 for the rails. The specific epithet viridis is Latin meaning "green".
Two subspecies are recognised: Males... Wikipedia →
Recording0:19
Brazil · 2022
© Gustavo Gonsioroski · iNaturalist · CC BY-NC 4.0
Recording1:25
Brazil · 2002
© dbeadle · iNaturalist · CC BY-NC 4.0
Recording0:32
Brazil · 2024
© Luciano Bernardes · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 2 | Chapada dos Guimarães National Park | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Russet-Crowned Crake sighting in Rio de Janeiro on a given day, based on 64 verified sightings from GBIF citizen-science data. It is the 149th most-seen of the 278 birds we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
April
In that month about 10% of wildlife watchers report a Russet-Crowned Crake in Rio de Janeiro on a given day, against under 5% in May to March, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Russet-Crowned Crake sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 6
Of the 6 cities where we can rate Russet-Crowned Crake sightings, Rio de Janeiro ranks 3rd at under 5%. The best odds are in Goiânia (Brazil, about 10%) and Belém (Brazil, under 5%).
Same family: Rallidae
The closest relatives of the Russet-Crowned Crake that you can see in Rio de Janeiro (family Rallidae, Rails, Gallinules, and Coots) are Gray-cowled Wood-Rail (about 10%), Slaty-breasted Wood-Rail (about 10%) and Common Moorhen (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Russet-Crowned Crake is recorded against all the birds logged in Rio de Janeiro (64 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.
