31 years checking Moore Reservoir and never anything like this afternoon. Saw at least 150 Buffleheads, 30 Bonaparte's Gulls, and in the far distance probably 200 Red-necked Grebes. Ringnecks, Greater Scaup, but missed the Horned Grebes and Long-tailed Ducks that Bob Quinn noted when they were closer to the dam. I checked Comerford dam area about 3:20 and saw all of a pair of Mallards and 1 pair of Buffleheads. When I got back to Moore about 4:00 there was not a bird to be seen.