Heliomaster longirostris
Silhouette: Cristian Gutierrez-Ibanez · PhyloPic
In 3 days ~10%
The long-billed starthroat (Heliomaster longirostris) is a species of hummingbird in the "mountain gems", tribe Lampornithini in subfamily Trochilinae. It is found in Mexico, Central America, Trinidad, and all but the four southernmost countries of South America.
At one time the long-billed starthroat was placed in genus Anthoscenus but since the mid-1900s has had its current placement in Heliomaster. The long-billed starthroat is 11 to 12 cm (4.3 to 4.7 in) long. Males weigh 5.5 to 7.1 g (0.19 to 0.25 oz) and females about 6.5 g (0.23 oz). Both sexes of all subspecies have a long, almost straight, black bill and a small white spot behind the eye.
Males of the nominate subspecies have a glittering blue to greenish blue crown; the rest of its upperparts are dark bronzy green with the exception of a white stripe down the center of the rump. The face is black below the crown and has a white malar stripe below the black. Its tail is rather short and square-tipped. The feathers are bronzy green near the body and black away from it, and the outer... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guayaquil | 🇪🇨 Ecuador | |
| 2 | San Salvador | 🇸🇻 El Salvador | |
| 3 | San José | 🇨🇷 Costa Rica | |
| 4 | Cali | 🇨🇴 Colombia |
Rare
Under 5% of wildlife watchers report a Long-billed Starthroat sighting in Chapada dos Guimarães National Park on a given day, based on 14 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 201st most-seen of the 273 birds we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
August
In that month about 10% of wildlife watchers report a Long-billed Starthroat in Chapada dos Guimarães National Park on a given day, against under 5% in May–July and September–January, the lowest months. That is one of Chapada dos Guimarães National Park's driest months, with about 15 mm of rain against 240 mm in March. February to April have too few records to rate.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Long-billed Starthroat sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
19th of 34
Of the 34 parks where we can rate Long-billed Starthroat sightings, Chapada dos Guimarães National Park ranks 19th at under 5%. The best odds are in Manu National Park (Peru, about 10%), Machalilla National Park (Ecuador, about 10%) and El Triunfo (Mexico, about 10%).
GBIF citizen-science records
It is estimated from how often the Long-billed Starthroat is recorded against all the birds logged in Chapada dos Guimarães National Park (14 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.
