After Chris and Philip left Snow Bunting Peninsula above Old Hickory Dam, I waited a few minutes, then drove to the parking area below the dam (Davidson county) where I observed 16 Black Terns flying up and down the river. Most were in mixed plumage, but a couple were in black plumage. I checked above the dam again with nothing new. I then drove to Lock 3 Park and Cages Bend Park in Hendersonville (Sumner county), but saw nothing unusual. Ken Oeser Hendersonville, TN