I happened upon this Common Loon hunting just off of Plum Island. He was very tolerant of people. In fact, on two occasions I had people walking their dogs come by. Naturally the dogs just had to come up to greet me, however this Loon took it all in stride.
Alas, we only get loons in winter plumage here. Just as they start to molt into their breeding plumage, they take off for fresh water lakes.