Basileuterus culicivorus
Silhouette: Andy Wilson · PhyloPic
In 3 days ~30% in a week ~50%
The golden-crowned warbler (Basileuterus culicivorus) is a small insectivorous bird in the New World warbler family Parulidae. It has a large geographic range that extends from northeastern Mexico south to northern Argentina. The white-bellied warbler was formerly treated as a separate species but is now considered to be conspecific with the golden-crowned warbler.
The golden-crowned warbler was formally described in 1830 under the binomial name Sylvia culicivora by the German accountant Wilhelm Deppe in a price list of specimens that had been collected in Mexico by Wilhelm's brother Ferdinand Deppe. The specific epithet combines the Latin culex, culicis meaning "midge" and -vorus meaning "eating". The golden-crowned warbler is now one of 12 species placed in the genus Basileuterus that was introduced in 1848 by the German ornithologist Jean Cabanis. The genus name is from Ancient Greek βασιλευτερος/basileuteros meaning "more kingly".
Fourteen subspecies are recognised: Basileuterus culicivorus flavescens Ridgway, 1902 – central west Mexico Basileuterus culicivorus brasierii (Giraud Jr, 1841) – northeast, central east Mexico Basileuterus culicivorus culicivorus (Deppe... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Buenos Aires | 🇦🇷 Argentina | |
| 2 | Curitiba | 🇧🇷 Brazil | |
| 3 | Porto Alegre | 🇧🇷 Brazil | |
| 4 | Campo Grande | 🇧🇷 Brazil | |
| 5 | São Paulo | 🇧🇷 Brazil | |
| 6 | Campinas | 🇧🇷 Brazil | |
| 7 | Santos | 🇧🇷 Brazil | |
| 8 | Rio de Janeiro | 🇧🇷 Brazil | |
| 9 | Belo Horizonte | 🇧🇷 Brazil | |
| 10 | Maceió | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Golden-crowned Warbler sighting in Rio de Janeiro on a given day, based on 403 verified sightings from GBIF citizen-science data. It is the 67th most-seen of the 278 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June and September
In those months about 20% of wildlife watchers report a Golden-crowned Warbler in Rio de Janeiro on a given day, against under 5% in January, the lowest month. Those are among Rio de Janeiro's driest months, with about 60 mm of rain a month against 230 mm in December.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Golden-crowned Warbler sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
8th of 20
Of the 20 cities where we can rate Golden-crowned Warbler sightings, Rio de Janeiro ranks 8th at about 10%. The best odds are in Buenos Aires (Argentina, about 30%), Curitiba (Brazil, about 20%) and Porto Alegre (Brazil, about 20%).
GBIF citizen-science records
It is estimated from how often the Golden-crowned Warbler is recorded against all the birds logged in Rio de Janeiro (403 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.
