Empidonax flavescens
Silhouette: Emily Willoughby · PhyloPic
In 3 days <5% in a week ~10%
The yellowish flycatcher (Empidonax flavescens) is a small passerine bird in the family Tyrannidae, the tyrant flycatchers. It is found from Mexico to Panama. From the late 1800s to the 1980s the yellowish flycatcher was treated as conspecific with what was then (and is now again) the western flycatcher (E. difficilis). Subspecies E. f. salvini was originally described as a full species and some authors have suggested that it again be treated that way.
The yellowish flycatcher is 12.5 to 14 cm (4.9 to 5.5 in) long and weighs 9 to 16 g (0.32 to 0.56 oz). The sexes are alike. Adults of the nominate subspecies have a pale yellow almond-shaped eye-ring on an otherwise yellowish green face. Their crown, nape, and upperparts are olive-green. Their tail is dusky to blackish with yellowish green edges on the feathers. Their remiges are mostly dusky to blackish and glossy. Their primaries have pale olive edges and the secondaries and tertials have pale yellow edges to the outer webs... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Volcán Barú National Park | 🇵🇦 Panama | |
| 2 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | |
| 3 | Los Quetzales National Park | 🇨🇷 Costa Rica | |
| 4 | La Tigra National Park | 🇭🇳 Honduras | |
| 5 | El Triunfo | 🇲🇽 Mexico | |
| 6 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 7 | Cusuco National Park | 🇭🇳 Honduras | |
| 8 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 9 | Celaque National Park | 🇭🇳 Honduras | |
| 10 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | |
| 11 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 12 | Poás Volcano National Park | 🇨🇷 Costa Rica | |
| 13 | Irazú Volcano National Park | 🇨🇷 Costa Rica | |
| 14 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 15 | Rincón de la Vieja National Park | 🇨🇷 Costa Rica | |
| 16 | Tenorio Volcano National Park | 🇨🇷 Costa Rica |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guatemala City | 🇬🇹 Guatemala | |
| 2 | San José | 🇨🇷 Costa Rica |
Rare
Under 5% of wildlife watchers report a Yellowish Flycatcher sighting in Rincón de la Vieja National Park on a given day, based on 18 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 247th most-seen of the 341 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
August and October
In those months about 10% of wildlife watchers report a Yellowish Flycatcher in Rincón de la Vieja National Park on a given day, against under 5% in September and November–July, the lowest months. Those are among Rincón de la Vieja National Park's wettest months, with about 330 mm of rain a month against 45 mm in February.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Yellowish Flycatcher sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
15th of 16
Of the 16 parks where we can rate Yellowish Flycatcher sightings, Rincón de la Vieja National Park ranks 15th at under 5%. The best odds are in Volcán Barú National Park (Panama, about 40%), Monteverde Cloud Forest Reserve (Costa Rica, about 30%) and Los Quetzales National Park (Costa Rica, about 30%).
GBIF citizen-science records
It is estimated from how often the Yellowish Flycatcher is recorded against all the birds logged in Rincón de la Vieja National Park (18 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.
