Illinois
Snakes in Douglas County
5 species have been documented here, and none are venomous.
Every snake recorded in Douglas County
Plains Garter Snake
Thamnophis radix
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Common Watersnake
Nerodia sipedon
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Gray Ratsnake
Pantherophis spiloides
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.