RAZORBILLS (ALCA TORDA) FOLLOW SUBARCTIC PREY INTO THE CANADIAN ARCTIC: COLONIZATION RESULTS FROM CLIMATE CHANGE?

We describe the occurrence and behavior of Razorbills (Alca torda) visiting Coats Island, Northern Hudson Bay, an area where sea-ice cover in summer has been much reduced since the mid-1990s. Coats Island is 300 km from the previous most-westerly breeding site for the species and nearly 2,000 km from the nearest large colony, in Newfoundland and Labrador. Razorbills appeared at Coats Island coincidentally with an increase in the delivery of...