Chaetura fumosa
Silhouette: Aviceda (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~50% in a week ~80%
The Costa Rican swift (Chaetura fumosa) is a species of bird in subfamily Apodinae of the swift family Apodidae. It is found in Costa Rica and Panama. During much of the 20th century the Costa Rican swift was treated as a subspecies of the band-rumped swift (C. spinicaudus). Before that time it was placed in genus Acanthylis with several other swifts that are now classified in genus Chaetura. The Costa Rican swift is monotypic.
The Costa Rican swift is about 11 cm (4.3 in) long. The sexes are alike. Their head is dusky. Their upperparts are mostly sooty black with a blue gloss and a pale grayish rump and dull black uppertail coverts. Their throat and breast are pale grayish.
The Costa Rican swift is found from southwestern Costa Rica east into western Panama's Chiriquí Province. The International Ornithological Committee places it in Colombia as well, but the South American Classification Committee of the American Ornithological Society has no records from that country. It occurs over several forest types, semi-open areas, pastures, and agricultural fields. In elevation it mostly occurs below 900 m (3,000... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Piedras Blancas National Park | 🇨🇷 Costa Rica | |
| 2 | Corcovado National Park | 🇨🇷 Costa Rica | |
| 3 | Carara National Park | 🇨🇷 Costa Rica | |
| 4 | Marino Ballena National Park | 🇨🇷 Costa Rica | |
| 5 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 6 | Manuel Antonio National Park | 🇨🇷 Costa Rica | |
| 7 | La Amistad International Park (Panama) | 🇵🇦 Panama |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San José | 🇨🇷 Costa Rica |
Possible
About 20% of wildlife watchers report a Costa Rican Swift sighting in Corcovado National Park on a given day, based on 586 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 60th most-seen of the 332 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.
March and April
In those months about 30% of wildlife watchers report a Costa Rican Swift in Corcovado National Park on a given day, against about 10% in May and September–November, the lowest months. Those are among Corcovado National Park's driest months, with about 180 mm of rain a month against 770 mm in October.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Costa Rican Swift sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 7
Of the 7 parks where we can rate Costa Rican Swift sightings, Corcovado National Park ranks 2nd at about 20%. The best odds are in Piedras Blancas National Park (Costa Rica, about 30%).
GBIF citizen-science records
It is estimated from how often the Costa Rican Swift is recorded against all the birds logged in Corcovado National Park (586 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.
