Great Black-backed Gull (Larus marinus)
Largest of the gulls seen around Montreal. Shows up usually as single bird at parks.
How to Identify
Identifiable by the dark grey back and red point on the yellow beak. Larger than the more common Ring-billed gull which as a light grey back and black ring around the beak.
Where and When to Spot
I see this bird all year around except winter. Usually sitting on a rock surrounded by water. I haven't seen this species within flocks of other gulls.