Antrostomus ridgwayi
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The buff-collared nightjar or Ridgway's whip-poor-will (Antrostomus ridgwayi) is a species of nightjar in the family Caprimulgidae. It is found in Guatemala, Honduras, Mexico, Nicaragua, and the U.S. state of Arizona. The buff-collared nightjar has two subspecies, the nominate Antrostomus ridgwayi ridgwayi and A. r. troglodytes. For a time it was included in genus Caprimulgus but was later restored to its original genus.
The head, upperparts, and tail are brownish gray with gray, cream, and rust markings. It has a bright cinnamon buff collar on the hindneck and a narrow buffy white band under the throat. The wings are brownish black with cinnamon buff bands. The breast is brownish gray and the belly tan with dark brown bars. The ends of the two outermost tail feathers have much white in the male and a small amount of buff in the female.
The nominate subspecies of buff-collared nightjar breeds from southeastern Arizona south through central... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cañón del Sumidero National Park | 🇲🇽 Mexico | |
| 2 | Santa Rosa National Park | 🇨🇷 Costa Rica |
No species of the same family or order lives in Cañón del Sumidero National Park, so these are its closest relatives here: other birds.
Rare
Under 5% of wildlife watchers report a Buff-collared Nightjar sighting in Cañón del Sumidero National Park on a given day, based on 26 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 167th most-seen of the 243 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.
January, March–April and September
In those months about 10% of wildlife watchers report a Buff-collared Nightjar in Cañón del Sumidero National Park on a given day, against under 5% in February, May–August and October–December, the lowest months.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Buff-collared Nightjar sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 2 parks where we can rate Buff-collared Nightjar sightings, Cañón del Sumidero National Park has the highest daily chance: under 5%. Next come Santa Rosa National Park (Costa Rica, under 5%).
GBIF citizen-science records
It is estimated from how often the Buff-collared Nightjar is recorded against all the birds logged in Cañón del Sumidero National Park (26 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.
