Pantherophis spiloides (Gray rat snake) - Michigan Natural Features Inventory

Rare prairie fen ecosystem conserved, Protects multiple threatened

Kansas Herpetofaunal Atlas

Gray Ratsnake (Pantherophis spiloides) - by Flown Kimmerling

Gray Ratsnake (Pantherophis spiloides) - Indiana Herp Atlas

Kansas Herpetofaunal Atlas

Rat Snakes Animal Facts

Meet The Reptiles of Georgia at The Chattahoochee Nature Center

Rat Snakes Animal Facts

Michigan Snakes - A Field Guide and Pocket Reference - MSU Extension

Rat Snakes Animal Facts

The Use of Operant Conditioning to Enhance the Management and

Springtime Snake ID - Ohio History Connection

Eastern Foxsnake Recovery Strategy

Springtime Snake ID - Ohio History Connection

Gray Ratsnake - Pantherophis spiloides