Three Thayer's Gulls Wings

These three Thayer's Gulls wings are in the collection at the Royal Ontario Museum (ROM) in Toronto. Each is different, showing some of the variation in Thayer's Gull wing pattern. The specimens were collected at Departure Bay, British Columbia, in February. when Thayer's Gulls are on their wintering grounds. I thank Mark Peck, Collections Manager at the ROM for access to the collection.