Wintering gulls have been coming to the Tennessee Valley since the late 1950s, about the same time as the Robert Mitchum movie Thunder Road arrived here but there's no real connection. At least, not to my knowledge.
Just about all of them are the medium-sized ring-billed gull (Larus delawarensis) but there are two non-ringbills.The larger herring gull and the smaller Bonaparte's gull can be found here at this time of the year, although not nearly as many of them.
Can you spot the one in the above photo taken on Melton Hill Lake that's the odd gull out? No ring on its bill.
(If you need a hint: look for the Bonaparte's pink feet.)
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