Eriocnemis derbyi
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~50% in a week ~80%
The black-thighed puffleg (Eriocnemis derbyi) is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia and Ecuador. The black-thighed puffleg is monotypic though at one time it was thought to have two subspecies.
The black-thighed puffleg is about 10 cm (3.9 in) long. It has a straight blackish bill. Males are mostly shining golden green overall, sometimes with black highlights, and has glittering malachite green upper- and undertail coverts. Their leg puffs are black and the tail is forked and black. Females are similar but have white underparts with green spots, and their leg puffs are a mix of black and grayish white. The female also has a blue tinge to the forehead. Juveniles resemble females.
The black-thighed puffleg is found in the Central Andes of Colombia from Tolima Department and south to Imbabura Province in northwestern Ecuador. It inhabits bushy pastures and the edges of humid forest, and in Colombia has also been recorded in shrubby ravines. It prefers somewhat open landscapes. In elevation it ranges from 2,500 to 3,600 m (8,200 to... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Los Nevados National Natural Park | 🇨🇴 Colombia |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Black-thighed Puffleg sighting in Los Nevados National Natural Park on a given day, based on 1,031 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 45th most-seen of the 424 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
October to July
In those months about 20% of wildlife watchers report a Black-thighed Puffleg in Los Nevados National Natural Park on a given day, against about 10% in August and September, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Black-thighed Puffleg sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Los Nevados National Natural Park, in our data
Los Nevados National Natural Park is the only park on Wallace's Line with enough records to rate Black-thighed Puffleg sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Black-thighed Puffleg is recorded against all the birds logged in Los Nevados National Natural Park (1,031 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.
