Donna and I first came across this bird in the Parksville Community Park on 17 January 2011. We are still seeing it several times a week around Parksville. It scrounges in parking lots, parks, and residential neighborhoods, looking for hand outs and other discarded human waste. In this sense, it certainly takes after it's Glaucous-winged Gull ancestors.
Some short video clips of the bird can be seen here;