The Sharp-tailed Snake is a small rare snake found on Vancouver Island and the
Gulf Islands, British Columbia. All snakes found in this
area are non-venomous and harmless to humans.
http://wlapwww.gov.bc.ca/wld/documents/shtsnake_IDguide_web.pdf
See this page for tips on snake-friendly gardening:
http://wlapwww.gov.bc.ca/wld/documents/snake_landscape_brchr.pdf