Gray Ratsnake (Pantherophis spiloides)

What does it look like?

The Gray Ratsnake, is also commonly known as the Black Ratsnake or the Eastern Ratsnake. It is non-venomous and is Ontario’s largest snake, reaching up to 2 metres in length. This elegant snake has a shiny black body with a white chin and throat. The belly is white or yellowish with dark spots that often produce a checkerboard pattern. Young snakes are grey with dark blotching on the body and tail.

Where does it live?

The two populations of Gray Ratsnake in Ontario can be found in different types of habitat. The Frontenac Axis population requires a variety of habitat types including deciduous forests, wetlands, lakes, rocky outcrops and agricultural fields. The Carolinian population is found in a mix of agricultural land and deciduous forest, preferring habitat where forest meets more open environments. Adults are strongly attached to their home ranges and often return to the same nesting and hibernation sites. They often lay eggs in logs or compost piles that serve as incubators. Sometimes several females will use the same site to deposit eggs.