Arremon costaricensis
Silhouette: Juan Camilo Cepeda-Duque · PhyloPic
In 3 days ~30% in a week ~50%
The Costa Rican brushfinch (Arremon costaricensis) is a species of bird in the family Passerellidae, the New World sparrows. It is found in Costa Rica and Panama. The Costa Rican brushfinch has a complicated taxonomic history. It was formally described in 1907 with the binomial Buarremon costaricensis. The genus Buarremon was later merged into genus Atlapetes but further study resulted in Buarremon's being resurrected. Buarremon costaricensis was later reassigned as one of many subspecies of what was then the "stripe-headed brushfinch" (Buarremon torquatus). In 2008 taxonomists began merging Buarremon into Arremon. Following a study published in 2010 and some earlier studies, taxonomists began splitting the "stripe-headed brushfinch" into eight species, one of which was the Costa Rican brushfinch.
The Costa Rican brushfinch is monotypic. The Costa Rican brushfinch is 17 to 20 cm (6.7 to 7.9 in) long and weighs 40 to 49.5 g (1.4 to 1.7 oz). The sexes have the same plumage. Adults have a black crown with a gray stripe in the middle and a gray supercilium that extends to the nape and continues down behind the ear coverts. The rest of their... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 2 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 3 | Volcán Barú National Park | 🇵🇦 Panama |
With luck
About 10% of wildlife watchers report a Costa Rican Brushfinch sighting in Chirripó National Park on a given day, based on 129 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 112th most-seen of the 332 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.
April
In that month about 30% of wildlife watchers report a Costa Rican Brushfinch in Chirripó National Park on a given day, against under 5% in February, May and September, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Costa Rican Brushfinch sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 parks where we can rate Costa Rican Brushfinch sightings, Chirripó National Park has the highest daily chance: about 10%. Next come La Amistad International Park (Panama) (Panama, under 5%) and Volcán Barú National Park (Panama, under 5%).
GBIF citizen-science records
It is estimated from how often the Costa Rican Brushfinch is recorded against all the birds logged in Chirripó National Park (129 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.
