Boissonneaua flavescens
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~10% in a week ~20%
The buff-tailed coronet (Boissonneaua flavescens) is a species of hummingbird in the 'Brilliants' tribe Heliantheini, within the subfamily Lesbiinae. It is found in Colombia, Ecuador, and Venezuela. The buff-tailed coronet shares genus Boissonneaua with two other coronets, the chestnut-breasted (B. matthewsii) and velvet-purple (B. jardini).
The buff-tailed coronet is 11 to 12 cm (4.3 to 4.7 in) long and weighs 7.3 to 8.8 g (0.26 to 0.31 oz). Both sexes have a short, straight, black bill and a small white spot behind the eye. Males of the nominate subspecies are mostly shining green, with a buff belly accented by green spots. The underwing coverts are cinnamon and show in flight. The central tail feathers are bronzy and the rest are buff with bronze tips and edges. It has small white tufts on the legs. The nominate female has more buff on the underparts and the bronze of the tail is less extensive. The buff parts of both sexes of B. f. tinochlora have a cinnamon cast and there is more bronze on the tail feathers' tips.
The nominate... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Los Nevados National Natural Park | 🇨🇴 Colombia | |
| 2 | Farallones de Cali National Natural Park | 🇨🇴 Colombia | |
| 3 | Chingaza National Natural Park | 🇨🇴 Colombia |
Rare
Under 5% of wildlife watchers report a Buff-tailed Coronet sighting in Farallones de Cali National Natural Park on a given day, based on 143 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 218th most-seen of the 542 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
April–May, October and December
In those months about 10% of wildlife watchers report a Buff-tailed Coronet in Farallones de Cali National Natural Park on a given day, against under 5% in January–March, June–September and November, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Buff-tailed Coronet sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 3
Of the 3 parks where we can rate Buff-tailed Coronet sightings, Farallones de Cali National Natural Park ranks 2nd at under 5%. The best odds are in Los Nevados National Natural Park (Colombia, about 20%).
GBIF citizen-science records
It is estimated from how often the Buff-tailed Coronet is recorded against all the birds logged in Farallones de Cali National Natural Park (143 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.
