Chaetura egregia
Silhouette: Aviceda (vectorized by T. Michael Keesey) · PhyloPic
In 3 days <5% in a week ~10%
The pale-rumped swift (Chaetura egregia) is a species of bird in subfamily Apodinae of the swift family Apodidae. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru. The pale-rumped swift has at times been treated as conspecific with the grey-rumped swift (C. cinereiventris). The two of them, the band-rumped swift (C. spinicaudus), and the Lesser Antillean swift (C. martinica) were at one time placed in genus Acanthylis. The pale-rumped swift is monotypic.
The pale-rumped swift is about 10.5 cm (4.1 in) long and weighs about 23 g (0.81 oz). It has a protruding head, a short square tail, and wings that bulge in the middle and somewhat hook at the end. The sexes are alike. Their upperparts are black with a bronze gloss and a whitish rump and uppertail coverts. Their underparts are mostly dark, with a pale throat and blackish undertail coverts.
The pale-rumped swift is found in eastern Ecuador, eastern Peru, western Brazil, and northwestern Bolivia and has been recorded as a vagrant in Colombia. It principally inhabits lowland tropical evergreen forest but also occurs over more open landscapes and... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru | |
| 2 | Manu National Park | 🇵🇪 Peru | |
| 3 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 4 | Yasuní National Park | 🇪🇨 Ecuador | |
| 5 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador |
Rare
Under 5% of wildlife watchers report a Pale-rumped Swift sighting in Cuyabeno Wildlife Reserve on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 284th most-seen of the 328 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.
August
In that month about 10% of wildlife watchers report a Pale-rumped Swift in Cuyabeno Wildlife Reserve on a given day, against under 5% in September to July, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Pale-rumped Swift sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 parks where we can rate Pale-rumped Swift sightings, Cuyabeno Wildlife Reserve ranks 5th at under 5%, level with the leaders once rounded. The best odds are in Tambopata National Reserve (Peru, under 5%), Manu National Park (Peru, under 5%) and Amacayacu National Natural Park (Colombia, under 5%).
GBIF citizen-science records
It is estimated from how often the Pale-rumped Swift is recorded against all the birds logged in Cuyabeno Wildlife Reserve (7 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.
