Chordeiles pusillus
Silhouette: Ferran Sayol · PhyloPic
In 3 days <5% in a week ~10%
The least nighthawk (Chordeiles pusillus) is a species of nightjar in the family Caprimulgidae. It is found in Argentina, Bolivia, Brazil, Colombia, Guyana, Suriname, and Venezuela. The least nighthawk was formally described in 1861 by the English ornithologist John Gould based on a specimen collected in the Brazilian state of Bahia. Gould coined the current binomial name Chordeiles pusillus. The specific epithet is Latin meaning "tiny" or "very small". Early in the 20th century the least nighthawk was assigned to its own genus, Nannochordeiles, but since the middle of the century has been included in Chordeiles.
Six subspecies are recognised: Two specimens from northeastern Argentina might... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 2 | Chapada Diamantina National Park | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Least Nighthawk sighting in Chapada Diamantina National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 249th most-seen of the 271 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.
April
In that month about 10% of wildlife watchers report a Least Nighthawk in Chapada Diamantina National Park on a given day, against under 5% in May to March, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Least Nighthawk sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Least Nighthawk sightings, Chapada Diamantina National Park ranks 2nd at under 5%. The best odds are in Serra da Canastra National Park (Brazil, about 10%).
GBIF citizen-science records
It is estimated from how often the Least Nighthawk is recorded against all the birds logged in Chapada Diamantina National Park (6 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.
