Mionectes olivaceus
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10% in a week ~30%
The olive-streaked flycatcher (Mionectes olivaceus) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Costa Rica and Panama. The four subspecies of what is now the olive-striped flycatcher (Mionnectes galbinus) were previously treated as subspecies of what is now the olive-streaked flycatcher. (Confusingly, the original unsplit species was called the olive-striped flycatcher but bore the present olive-streaked flycatcher's binomial Mionectes olivaceus.) Based primarily on vocal differences the species were separated by taxonomic systems beginning in 2016, leaving the olive-streaked flycatcher as a monotypic species. However, as of late 2024, the North American and South American Classification Committees of the American Ornithological Society have not agreed to the split. They retain the olive-striped flycatcher/Mionectes olivaceus names.
This article follows the monotypic species model. The olive-streaked flycatcher is 13 cm (5.1 in) long. The sexes have the same plumage. Adults have a dark olive face with white streaks and a small triangular white spot behind the eye. Their crown and nape are dark... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | |
| 2 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 3 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | |
| 4 | Volcán Barú National Park | 🇵🇦 Panama | |
| 5 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 6 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 7 | Los Quetzales National Park | 🇨🇷 Costa Rica | |
| 8 | Poás Volcano National Park | 🇨🇷 Costa Rica | |
| 9 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 10 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | |
| 11 | Cahuita National Park | 🇨🇷 Costa Rica | |
| 12 | Rincón de la Vieja National Park | 🇨🇷 Costa Rica |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San José | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report an Olive-striped Flycatcher (Olive-streaked) sighting in Chirripó National Park on a given day, based on 78 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 156th most-seen of the 332 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
December
In that month about 20% of wildlife watchers report an Olive-striped Flycatcher (Olive-streaked) in Chirripó National Park on a given day, against under 5% in January to September, the lowest months. That is one of Chirripó National Park's driest months, with about 120 mm of rain against 690 mm in October.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Olive-striped Flycatcher (Olive-streaked) sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 12
Of the 12 parks where we can rate Olive-striped Flycatcher (Olive-streaked) sightings, Chirripó National Park ranks 6th at about 10%. The best odds are in Monteverde Cloud Forest Reserve (Costa Rica, about 20%), Arenal Volcano National Park (Costa Rica, about 10%) and Tapantí-Macizo de la Muerte National Park (Costa Rica, about 10%).
GBIF citizen-science records
It is estimated from how often the Olive-striped Flycatcher (Olive-streaked) is recorded against all the birds logged in Chirripó National Park (78 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.
