‘Hit 3 times in a row. The last time so hard on the back of my head, I stumbled and almost fell.’

A comment left on Crowtrax, an interactive map that tracks crow attacks in British Columbia’s Lower Mainland. Rick Davidson and Jim O’leary, GIS instructors at Vancouver’s Langara College, developed the map to pinpoint the location and severity of attacks, which usually occur during the crow’s nesting season (April to June).