Heliomaster furcifer
Silhouette: Cristian Gutierrez-Ibanez · PhyloPic
In 3 days ~30% in a week ~50%
The blue-tufted starthroat (Heliomaster furcifer) is a species of hummingbird in the "mountain gems", tribe Lampornithini in subfamily Trochilinae. It is found in Argentina, Bolivia, Brazil, Colombia, Paraguay, Peru, Uruguay and possibly Ecuador.
At one time the blue-tufted starthroat was the only species in genus Heliomaster, but since the mid-1900s three other species have been reassigned to it. The blue-tufted starthroat is monotypic. The blue-tufted starthroat is 12.6 to 13 cm (5.0 to 5.1 in) long and weighs 5 to 6.5 g (0.18 to 0.23 oz). Both sexes of all subspecies have a long, decurved, black bill and a small white spot behind the eye. Both have a forked tail but the female's is less deeply indented than the male's. Males in breeding plumage have an emerald green crown, nape, and upper back; the rest of the upperparts are shining coppery green. The throat is glittering violet. The underparts and elongated feathers on the sides of the neck are iridescent ultramarine. The tail is dark green on its upper side and blue-green below. Non-breeding males are grayish below like females. Females have coppery green upperparts. The throat and... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Palmar National Park | 🇦🇷 Argentina | |
| 2 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 3 | Iberá National Park | 🇦🇷 Argentina | |
| 4 | Amboró National Park | 🇧🇴 Bolivia | |
| 5 | Chapada dos Guimarães National Park | 🇧🇷 Brazil | |
| 6 | Iguazú National Park | 🇦🇷 Argentina | |
| 7 | Iguaçu National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cordoba | 🇦🇷 Argentina | |
| 2 | Rosario | 🇦🇷 Argentina | |
| 3 | Asuncion | 🇵🇾 Paraguay | |
| 4 | Campo Grande | 🇧🇷 Brazil | |
| 5 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 6 | Buenos Aires | 🇦🇷 Argentina |
With luck
About 10% of wildlife watchers report a Blue-tufted Starthroat sighting in Iberá National Park on a given day, based on 152 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 158th most-seen of the 284 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
February and November
In those months about 20% of wildlife watchers report a Blue-tufted Starthroat in Iberá National Park on a given day, against under 5% in June–July and October, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Blue-tufted 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.
3rd of 7
Of the 7 parks where we can rate Blue-tufted Starthroat sightings, Iberá National Park ranks 3rd at about 10%. The best odds are in El Palmar National Park (Argentina, about 20%) and El Impenetrable National Park (Argentina, about 10%).
Same family: Trochilidae
The closest relatives of the Blue-tufted Starthroat that you can see in Iberá National Park (family Trochilidae, Hummingbirds) are Gilded Hummingbird (about 30%) and Glittering-bellied Emerald (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blue-tufted Starthroat is recorded against all the birds logged in Iberá National Park (152 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.
