Common Garter Snake (Thamnophis sirtalis)
The most frequently seen snake around Montreal. About half to a meter long and not poisonous.
How to Identify
Greenish with yellow stripes. As there are not many different snakes in Canada, not difficult to identify.
Where and When to Spot
I saw this species twice on my explorative walks through the parks in Montreal and both times in Park Angrignon, spring, in the forest area.