Eleutherodactylus campi
Silhouette: Graham Montgomery · PhyloPic
In 3 days ~20% in a week ~40%
Eleutherodactylus cystignathoides, also known as the Rio Grande chirping frog, Mexican chirping frog, or lowland chirping frog, is a small eleutherodactylid frog. It is found from the southern United States in Texas, and in the northeastern Mexico in the states of Nuevo León, Tamaulipas, San Luis Potosí, Hidalgo, and Veracruz. Its range in Texas has expanded because of transport in potted plants and has been reported in Louisiana and Georgia.
Two subspecies are sometimes recognized, although they are poorly delineated: Eleutherodactylus cystignathoides cystignathoides (Cope, 1877) — Rio Grande chirping frog, Mexican chirping frog Eleutherodactylus cystignathoides campi (Stejneger, 1915) — Rio Grande chirping frog, Camp's frog
Only Eleutherodactylus cystignathoides campi occurs in Texas. Adult males measure 16–24 mm (0.6–0.9 in) and adult females 16–26 mm (0.6–1.0 in) in snout–vent length. The snout is pointed and the body is flat and elongated. Tympanum is visible. The finger tips are slightly expanded. Dorsal skin is weakly pustular, that of venter is smooth to areolate. Dorsal coloration is variable (brown, gray, or yellow-green) and includes... Wikipedia →
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United States · 2015
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United States · 2021
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Houston | 🇺🇸 United States | |
| 3 | Dallas | 🇺🇸 United States | |
| 4 | San Antonio | 🇺🇸 United States | |
| 5 | Monterrey | 🇲🇽 México |
With luck
About 10% of wildlife watchers report a Camp's Chirping Frog sighting in Houston on a given day, based on 121 verified sightings from GBIF citizen-science data. It is the 6th most-seen of the 11 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
February to December
In those months about 10% of wildlife watchers report a Camp's Chirping Frog in Houston on a given day, against under 5% in January, the lowest month.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Camp's Chirping Frog sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 5 cities where we can rate Camp's Chirping Frog sightings, Houston ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Austin (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Camp's Chirping Frog is recorded against all the amphibians logged in Houston (121 verified sightings), 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.
