Alan Troyer and I had a dark Ibis fly over at Grassy Lake in the Duck River Unit, TNWR, Humphreys County tonight, October 19 at 6:00 p.m. We were unable to identify the bird. It appeared to be headed towards the Egret-Cormorant roost. There was also a Laughing Gull with a group of Ring-bills and one Herring at the mouth of the Duck River. Ruben Stoll Centerville, TN. Sent from my Verizon Wireless smartphone