Word has come down from above that the large Gull that I've been calling
a Great Black-backed Gull is now determined to be a juvenile, hybrid Great
Black-backed x Glaucous Gull.
Still definitely worth stopping by there for a look. It's a really good
looking bird, and it'll probably be a while before another one of this
combination shows up in Tennessee.
Ruben Stoll, Centerville TN.