Colibri serrirostris
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~60% in a week ~90%
The white-vented violetear (Colibri serrirostris) is a species of hummingbird in the subfamily Polytminae, the mangoes. It is found in Argentina, Bolivia, Brazil, and Paraguay. In April, 2024, one was also photographed at Batsu Gardens in Costa Rica.
The white-vented violetear is monotypic. The white-vented violetear is 12 to 13 cm (4.7 to 5.1 in) long and weighs 5.6 to 6.8 g (0.20 to 0.24 oz). The male is mostly shiny green, of a shade lighter than that of other violetears. Towards the rump it is yellow-green with a blue shimmer. The tail is glittering green with a wide steel-blue band near the end. The undertail coverts are pure white. The area behind the eye and covering the ears is violet blue. The female is similar to the male but paler and more grayish. The maxilla of both sexes is sometimes serrated, which provides its specific epithet.
The white-vented violetear is found in a wide swath of southern Brazil, from Mato Grosso east to Goiás, Bahia and Espírito Santo and south to Santa Catarina. Its range extends west into Bolivia, central Paraguay, and northern Argentina as far south as Córdoba Province... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 2 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 3 | Emas National Park | 🇧🇷 Brazil | |
| 4 | Chapada dos Guimarães National Park | 🇧🇷 Brazil | |
| 5 | Itatiaia National Park | 🇧🇷 Brazil | |
| 6 | Amboró National Park | 🇧🇴 Bolivia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Curitiba | 🇧🇷 Brazil | |
| 2 | Belo Horizonte | 🇧🇷 Brazil | |
| 3 | São Paulo | 🇧🇷 Brazil |
Possible
About 30% of wildlife watchers report a White-vented Violetear sighting in Emas National Park on a given day, based on 71 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 68th most-seen of the 187 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
May and June
In those months about 40% of wildlife watchers report a White-vented Violetear in Emas National Park on a given day, against about 20% in March and July–August, the lowest months. Those are among Emas National Park's driest months, with about 20 mm of rain a month against 190 mm in January. April and December–February have too few records to rate.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most White-vented Violetear sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 6
Of the 6 parks where we can rate White-vented Violetear sightings, Emas National Park ranks 3rd at about 30%. The best odds are in Serra da Canastra National Park (Brazil, about 50%) and Chapada Diamantina National Park (Brazil, about 40%). All parks ranked.
Same family: Trochilidae
The closest relatives of the White-vented Violetear that you can see in Emas National Park (family Trochilidae, Hummingbirds) are Swallow-tailed Hummingbird (about 30%), Fork-tailed Woodnymph (about 20%) and Glittering-bellied Emerald (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-vented Violetear is recorded against all the birds logged in Emas National Park (71 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.
