State herp calendar
Reptiles and Amphibians of Nebraska
Nebraska is prairie, sandhills and river valleys. Woodhouse's Toads and American Bullfrogs are the most-reported herps. Ornate Box Turtles walk the grasslands. May is the busiest month, and the Prairie Rattlesnake is the only venomous snake on the list.
26 species3 ecoregions1 venomous
Search entire stateSpecies out across Nebraska, by group and month
| Group | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snakes | 1 | 5 | 9 | 10 | 10 | 7 | 8 | 8 | 8 | 4 | 1 | |
| Lizards | 1 | 5 | 5 | 5 | 5 | 3 | ||||||
| Turtles | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | ||||
| Frogs and Toads | 3 | 6 | 8 | 8 | 8 | 8 | 7 | 5 | 1 |
Numbers = species active that month (at peak or just starting / winding down).
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Hi, I'm Nick. I built Herp Calendar on my own and I keep it free, with no ads. If it has helped you find a herp this season, a small tip goes straight into the hosting and the data work. Only if you can spare it. Either way, I'm glad you're here.
Pick your ecoregion
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Tap a region to see what's out
Ecoregions of Nebraska
Seasons shift a lot between Nebraska's ecoregions. Pick the one nearest you for a 12-month calendar of what's out.
Central Great Plains
49 speciesPrairie, farm ponds and river bottoms with toads, turtles and collared lizards.
View calendar →High Plains
24 speciesShortgrass prairie and playa lakes with plains toads and prairie rattlesnakes.
View calendar →Northern Great Plains
15 speciesOpen prairie and pothole ponds with leopard frogs, painted turtles and rattlesnakes.
View calendar →Venomous here: Prairie Rattlesnake. Don't handle any snake you can't identify.
About Nebraska
When are reptiles and amphibians most active in Nebraska?
May is the busiest month in Nebraska, with 23 species at peak activity. At least half of the area's species are active from April through October.
What reptiles and amphibians live in Nebraska?
26 species have enough iNaturalist records to show here: 10 snakes, 8 frogs and toads, 5 lizards, and 3 turtles. The most-reported are the Woodhouse's Toad, American Bullfrog, and Painted Turtle.
Are there venomous snakes in Nebraska?
Yes. The Prairie Rattlesnake lives here. Don't handle them.
Where does this data come from?
Activity calendars are built from iNaturalist research-grade observations (downloaded through GBIF, September 2026), corrected for how many people are out observing each month. Rare and protected species are left off on purpose.