Mitlenatch Island Nature Provincial Park is home to the largest seabird colony in the Strait of Georgia. Glaucous-winged gulls, pelagic cormorants, pigeon guillemots, rhinoceros auklets and black oystercatchers also return to Mitlenatch each spring to breed.
Mitlenatch Island Nature Provincial Park is a location where various seabirds, including Glaucous-winged gulls, pelagic cormorants, pigeon guillemots, rhinoceros auklets and black oystercatchers, breed during the spring season.