Antrostomus ridgwayi
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
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 |
Rare
Under 5% of wildlife watchers report a Buff-collared Nightjar sighting in Santa Rosa National Park on a given day, based on 45 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 222nd most-seen of the 233 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.
May
In that month about 10% of wildlife watchers report a Buff-collared Nightjar in Santa Rosa National Park on a given day, against under 5% in June to April, 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.
Among the best
Of the 2 parks where we can rate Buff-collared Nightjar sightings, Santa Rosa National Park ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Cañón del Sumidero National Park (Mexico, under 5%).
GBIF citizen-science records
It is estimated from how often the Buff-collared Nightjar is recorded against all the birds logged in Santa Rosa National Park (45 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.
