Northern Crayfish Frog
The northern crayfish frog grows to a length of nearly four inches. It has dark round spots surrounded by light borders on its chin, and the back is noticeably humped. This somewhat stubby frog lives in the southern half of Illinois and is closely associated with the hardpan clay soils south of the Shelbyville Moraine. This nocturnal frog spends the daytime hiding in crayfish or other animal burrows or under boards or logs in wet prairies, pastures or golf courses. It lays its eggs from early March to mid-April in flooded fields, farm ponds and small lakes. The call of the crayfish frog carries a considerable distance. It resembles a deep, roaring snore.