Eupherusa eximia
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~10%
The stripe-tailed hummingbird (Eupherusa eximia) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found from southeastern Mexico to Panama. Some authors have also treated the white-tailed hummingbird (E. poliocerca) and Oaxaca hummingbird (E. cyanophrys) as additional subspecies.
The stripe-tailed hummingbird is 9 to 10.5 cm (3.5 to 4.1 in) long and weighs an average of 4–4.5 g (0.14–0.16 oz). Both sexes of all subspecies have a straight black bill. The nominate male has bright metallic grass green upperparts that is more bronzy on the uppertail coverts. Cinnamon rufous secondaries show as a patch on the folded wing. Its three inner pairs of tail feathers are dark bronze green; the outer two pairs have black outer webs and white inner ones with black tips, giving the species its English name. Its underparts are bright metallic grass green with white undertail coverts. The female also has grass green upperparts; its underparts are brownish gray with metallic green spots on the sides... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | |
| 2 | Volcán Barú National Park | 🇵🇦 Panama | |
| 3 | Los Quetzales National Park | 🇨🇷 Costa Rica | |
| 4 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 5 | Pico Bonito National Park | 🇭🇳 Honduras | |
| 6 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 7 | Cusuco National Park | 🇭🇳 Honduras | |
| 8 | Poás Volcano National Park | 🇨🇷 Costa Rica | |
| 9 | Celaque National Park | 🇭🇳 Honduras | |
| 10 | Rincón de la Vieja National Park | 🇨🇷 Costa Rica | |
| 11 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | |
| 12 | Cañón del Sumidero National Park | 🇲🇽 Mexico | |
| 13 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 14 | Cerro Azul Meámbar National Park | 🇭🇳 Honduras | |
| 15 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 16 | Tenorio Volcano National Park | 🇨🇷 Costa Rica |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San José | 🇨🇷 Costa Rica |
Rare
Under 5% of wildlife watchers report a Stripe-tailed Hummingbird sighting in Arenal Volcano National Park on a given day, based on 331 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 276th most-seen of the 503 birds we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
May
In that month about 10% of wildlife watchers report a Stripe-tailed Hummingbird in Arenal Volcano National Park on a given day, against under 5% in June to April, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Stripe-tailed Hummingbird sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
13th of 16
Of the 16 parks where we can rate Stripe-tailed Hummingbird sightings, Arenal Volcano National Park ranks 13th at under 5%. The best odds are in Monteverde Cloud Forest Reserve (Costa Rica, about 50%), Volcán Barú National Park (Panama, about 40%) and Los Quetzales National Park (Costa Rica, about 30%).
Same family: Trochilidae
The closest relatives of the Stripe-tailed Hummingbird that you can see in Arenal Volcano National Park (family Trochilidae, Hummingbirds) are Rufous-tailed Hummingbird (about 70%), Violet-headed Hummingbird (about 40%) and Scaly-breasted Hummingbird (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Stripe-tailed Hummingbird is recorded against all the birds logged in Arenal Volcano National Park (331 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.
