These aree 2 of 3 Common Loons diving among the docked boats at the Sandwich Marina on the south side of the Cape Cod Canal. I pored over at least 20 Common Loons in the area looking for the Pacific Loon that had been reported but to no avail. These two made sure I knew they were not Pacific Loons by getting very close and letting me see their necks excepetionally well!