Antrostomus arizonae
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The Mexican whip-poor-will, (Antrostomus arizonae), is a medium-sized nightjar of the southwestern United States, Mexico, and northern Central America. Until 2010 the Mexican whip-poor-will and what is now the eastern whip-poor-will (Antrostomus vociferus) were considered conspecific under the name whip-poor-will. They were separated based on differences in their genetics, morphology, and vocalizations. The two remain sister species and with the Puerto Rican nightjar (A. noctitherus) form a superspecies. The Mexican whip-poor-will has these five subspecies:
In general its upperparts are grayish brown with blackish brown streaks; the crown has wide blackish brown stripes. The throat and breast are blackish with a thin white band on the lower throat between them. The belly is buff with brown bars. The male's outermost three pairs of tail feathers have broad white tips; the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States | |
| 2 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 3 | El Triunfo | 🇲🇽 Mexico | |
| 4 | Guadalupe Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mexico City | 🇲🇽 México |
Rare
Under 5% of wildlife watchers report a Mexican Whip-poor-will sighting in El Triunfo on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 215th most-seen of the 221 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.
November
In that month about 20% of wildlife watchers report a Mexican Whip-poor-will in El Triunfo on a given day, against under 5% in July–October and December–May, the lowest months. That is one of El Triunfo's driest months, with about 50 mm of rain against 420 mm in June. June has too few records to rate.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Mexican Whip-poor-will sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
3rd of 4
Of the 4 parks where we can rate Mexican Whip-poor-will sightings, El Triunfo ranks 3rd at under 5%. The best odds are in Big Bend National Park (United States, about 10%) and Cumbres de Monterrey National Park (Mexico, about 10%).
GBIF citizen-science records
It is estimated from how often the Mexican Whip-poor-will is recorded against all the birds logged in El Triunfo (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.
