Threnetes leucurus
Silhouette: Ferran Sayol · PhyloPic
In 3 days <5% in a week ~10%
The pale-tailed barbthroat (Threnetes leucurus) is a species of hummingbird in the family Trochilidae. It is found throughout much of the Amazon Basin from the eastern Andean foothills to the Atlantic Ocean. The pale-tailed barbthroat was formally described by the Swedish naturalist Carl Linnaeus in 1766 in the twelfth edition of his Systema Naturae under the binomial name Trochilus leucurus. Linnaeus based his short description on the "white-tailed humming-bird" that had been described and illustrated by the English naturalist George Edwards in 1758. The type locality is Suriname. The specific epithet is from the Ancient Greek leukouros meaning "white-tailed". The pale-tailed barbthroat is now placed in the genus Threnetes that was introduced in 1852 by the English ornithologist John Gould.
Four subspecies are recognised: The taxonomy of the pale-tailed and sooty barbthroat (T. niger) complex is unsettled. The two were originally described as separate species, then combined under the name pale-tailed barbthroat but with the binomial... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru | |
| 2 | Podocarpus National Park | 🇪🇨 Ecuador | |
| 3 | Tambopata National Reserve | 🇵🇪 Peru | |
| 4 | Yasuní National Park | 🇪🇨 Ecuador | |
| 5 | Amacayacu National Natural Park | 🇨🇴 Colombia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Belém | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Pale-tailed Barbthroat sighting in Yasuní National Park on a given day, based on 41 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 401st most-seen of the 533 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Pale-tailed Barbthroat in Yasuní National Park on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Pale-tailed Barbthroat sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 5
Of the 5 parks where we can rate Pale-tailed Barbthroat sightings, Yasuní National Park ranks 4th at under 5%. The best odds are in Manu National Park (Peru, about 10%), Podocarpus National Park (Ecuador, under 5%) and Tambopata National Reserve (Peru, under 5%).
Same family: Trochilidae
The closest relatives of the Pale-tailed Barbthroat that you can see in Yasuní National Park (family Trochilidae, Hummingbirds) are Great-billed Hermit (about 10%), Fork-tailed Woodnymph (about 10%) and Glittering-throated Emerald (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pale-tailed Barbthroat is recorded against all the birds logged in Yasuní National Park (41 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.
