Basileuterus rufifrons
Silhouette: Andy Wilson · PhyloPic
In 3 days ~50% in a week ~80%
The rufous-capped warbler (Basileuterus rufifrons) is a species of bird in the family Parulidae, the New World warblers. It is found in Belize, Guatemala, and Mexico. It also occurs as a casual visitor to the U. S. states of Arizona and Texas.
The rufous-capped warbler has a complicated taxonomic history. It was formally described in 1838 with the binomial Setophaga rufifrons. For a time in the nineteenth century it was placed in a new genus Idiotes. In 1902 Robert Ridgway assigned it to its present genus Basileuterus. By the end of the twentieth century it had been assigned eight subspecies, several of which had been treated by various authors as full species.
The further taxonomy of the rufous-capped warbler remains unsettled. In 2021 the American Ornithological Society, the IOC, and the Clements taxonomy split three of the subspecies as the chestnut-capped warbler (M. delatrii). They retained these five subspecies as the rufous-capped warbler:
The South American Classification Committee implemented the split... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San José | 🇨🇷 Costa Rica | |
| 2 | San Salvador | 🇸🇻 El Salvador | |
| 3 | Mexico City | 🇲🇽 México | |
| 4 | Medellín | 🇨🇴 Colombia | |
| 5 | Guatemala City | 🇬🇹 Guatemala | |
| 6 | Monterrey | 🇲🇽 México | |
| 7 | Managua | 🇳🇮 Nicaragua | |
| 8 | Puebla | 🇲🇽 México | |
| 9 | Tegucigalpa | 🇭🇳 Honduras | |
| 10 | Panama City | 🇵🇦 Panama |
Possible
About 20% of wildlife watchers report a Rufous-capped Warbler sighting in San José on a given day, based on 3,556 verified sightings from GBIF citizen-science data. It is the 34th most-seen of the 379 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
April
In that month about 30% of wildlife watchers report a Rufous-capped Warbler in San José on a given day, against about 10% in July, the lowest month. That is one of San José's driest months, with about 75 mm of rain against 300 mm in October.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Rufous-capped 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.
Yes
Of the 11 cities where we can rate Rufous-capped Warbler sightings, San José has the highest daily chance: about 20%. Next come San Salvador (El Salvador, about 10%) and Mexico City (México, about 10%).
GBIF citizen-science records
It is estimated from how often the Rufous-capped Warbler is recorded against all the birds logged in San José (3,556 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.
