I've fished Dale Hollow numerous times in February and March and very seldom saw many ducks. There are a few resident wood ducks in the fall and I've seen a number of coots before. I sure wish the highland resivours of Ky and Tenn. held ducks like those of the western Tenn. and Cumberland River Valley.
If the duck hunting doesn't work out it can be one of the best places for trophy smallmouth and spotted bass during the winter months. Silver buddy, small jigs and float and fly work the best for artificials. If you want pure numbers of good size fish I here large shiners are the ticket.
Good luck with which ever you get to do.
Where are they building?