Strongylopus grayii
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~70% in a week ~90%
Gray's stream frog (Strongylopus grayii) is a fairly small species of frog in the family Pyxicephalidae. It is a ground dweller, living mainly in vegetation such as sedges, generally brown, slenderly built and agile, with long, practically unwebbed toes.
Strongylopus grayii is a fairly small species (snout-to-vent length of breeding specimens about 25 to 50 mm). The snout is not as pointed as most of the genus, the snout profile being rather reminiscent of the Cape river frog. The ventral skin is smooth, pale to white, the dorsal skin colour is variable, generally shades of brown with darker blotches. Similar blotches form bars across the upper surfaces of the thighs. Often it has a vertebral line in a lightly contrasting colour, pale to reddish. Some colour variants have a broad russet band down the back. The dorsal skin is textured with scattered small, raised ridges, largely longitudinal. The tympanum is smaller in diameter than the eye, but more than half the diameter. Though clearly visible, it is inconspicuous, being situated in a dark facial band of pigment behind the eye. The facial band extends more or less from the nostril, across the lower part of the eye... Wikipedia →
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South Africa · 2025
© lizziegeorge · iNaturalist · CC BY-NC 4.0
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South Africa · 2024
© flamelily · iNaturalist · CC BY-NC 4.0
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South Africa · 2023
© ryanderoo · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | De Hoop Nature Reserve | 🇿🇦 South Africa | |
| 2 | Table Mountain National Park | 🇿🇦 South Africa | |
| 3 | Garden Route National Park | 🇿🇦 South Africa | |
| 4 | West Coast National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cape Town | 🇿🇦 South Africa |
Possible
About 30% of wildlife watchers report a Clicking Stream Frog sighting in Cape Town on a given day, based on 769 verified sightings from GBIF citizen-science data. It is the 2nd most-seen of the 13 amphibians we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
June–July and October
In those months about 40% of wildlife watchers report a Clicking Stream Frog in Cape Town on a given day, against about 20% in January, the lowest month. Those are among Cape Town's wettest months, with about 100 mm of rain a month against 15 mm in February.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Clicking Stream Frog sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Only Cape Town, in our data
Cape Town is the only city on Wallace's Line with enough records to rate Clicking Stream Frog sightings: about 30% of wildlife watchers there report one on a given day.
Same family: Pyxicephalidae
The closest relatives of the Clicking Stream Frog that you can see in Cape Town (family Pyxicephalidae, African Box-headed Frogs) are Cape River Frog (about 20%), Cape sand frog (about 10%) and Micro Frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Clicking Stream Frog is recorded against all the amphibians logged in Cape Town (769 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.
