Pelicans in Long Island Sound
Brown pelicans are hardly common but they also are far from unheard of on Long Island Sound. They breed further south but young birds often leave the nest and fly north to feed along the coast in late summer and early fall. Like ospreys, they were almost wiped out by DDT but have made a strong comeback.
Birders who report in to the Connecticut Ornithological Association have seen brown pelicans this month in Milford, Bridgeport, Fairfield, and New Haven, although how many individuals that represents is hard to know. The reports always refer to "a brown pelican" or "the brown pelican," so it might be just one bird.
In any case, great sighting, Matt!