No official source we use states whether this animal is venomous. That does not mean it is harmless: do not handle it.
Size
Usually 6 to 8 inches long (NCWRC); can reach 8 inches or more and weigh over 2 pounds (CDFW). Missouri gives 3.5 to 6 inches snout to vent, occasionally to 8.75.
How to recognize it
No ridge (dorsolateral fold) down each side of the back
Large round eardrum: about twice the eye in males, about eye-sized in females
Fully webbed hind feet, longest toe extends past the webbing
NPS says it is sometimes mistaken for a bullfrog because of its size and smooth skin. The prominent parotoid glands mark it as a true toad.
Photos show typical adults; individuals vary. Never get close to compare.
When frogs and toads are active in California
Records of frogs and toads in California peak in March to August. They show when people record frogs and toads, not how many there are (about month bars).
JanFebMarAprMayJunJulAugSepOctNovDec
9,680 records of frogs and toads in California by month (GBIF, CC0 and CC BY records).
How to report
Wildlife conflicts: CDFW Wildlife Incident Reporting (WIR) system https://apps.wildlife.ca.gov/wir, emergencies 9-1-1. Invasive animal sightings: CDFW Invasive Species Program (866) 440-9530 or [email protected]; invasive insects/spiders/terrestrial invertebrates: California Department of Food and Agriculture 1-800-491-1899. California Department of Fish and Wildlife
California's Invaders: Common Coqui. California Department of Fish and Wildlife (Invasive Species Program). undated page; checked November 3, 2026.Quoted passages (2)
“Coquis are named after the call of the male, which is a loud, whistling ‘ ko-KEE ’ sound.”
“Eye color of the common coqui ranges from gold to brown. Coquis have large toes for climbing and lack webbing on their feet.”
California's Invaders: American Bullfrog. California Department of Fish and Wildlife (Invasive Species Program). undated page; checked November 3, 2026.Quoted passages (1)
“Bullfrogs have large eardrums, or tympanum, which are larger in males (twice the size as their eye) than females (same size as their eye).”
Report an Invasive Species Sighting. California Department of Fish and Wildlife (Invasive Species Program). undated page; checked November 3, 2026.Quoted passages (1)
“To report a sighting of a known, or suspected invasive species of an animal (mammal, bird, reptile, amphibian, fish, aquatic invertebrate) or marine plant, complete and submit the Suspect Invasive Species Sighting Report form below or contact us at (866) 440-9530. / For a known invasive plant, terrestrial invertebrate (worm, beetle, spider, bug, bee, fly, ant, snail, etc.) or plant/tree disease, or one that you suspect may be new to your area of California, contact the California Department of Food and Agriculture at 1-800-491-1899. / [ca-cdfw-hwc] Wildlife Incident Reporting (WIR) System For Emergencies, call 9-1-1”