An important piece of the conversation related to Scotch broom on the West Coast of North America is its successional role in the context of unmanaged or undermanaged oak savannah ecosystems. Its often found in highly disturbed ecosystems (like clearcuts), but is also found in what are often considered "undisturbed" ecosystems like oak savannahs.
Dale Hodgins wrote:The night snake is not known to live on Vancouver Island.
We have three races of the Garter Snake and the very tiny pointed nose snake.
Night snakes are limited to hot, dry regions of South Central BC.
Here's an excerpt from the web page that was posted--- Night Snakes appear to be limited to extreme south-central British Columbia. About 40 Night Snakes have been recorded in B.C., and most of these snakes were located in the Okanagan Valley. Some snakes also have been found in the Similkameen. Night Snakes appear to be associated with Sagebrush and Juniper plant communities, rock outcrops, and south-facing talus slopes. Like other oviparous species, these snakes need appropriate hibernacula, egg-laying sites, and productive summer hunting grounds to survive within these hot, dry regions.
Dale Hodgins wrote:Looking at the likelihood of one of these snakes hitching a ride across the province or some fool purchasing a snake as a pet, and then releasing it, I think the pet store variety is more likely.
If you were up on the malahat, I might be more inclined to think that there's a chance of it being an unknown, long-term resident. But we are in the largest city on this island, where pet stores abound. A critter camera might help to settle this.