Lesser scaup (or bluebill) decoys are a Thief Lake standard. They comprise the bulk of most diver spreads on the lake. I have a couple of bags of carved bluebills I hunt over when the 'bills are in.

This particular bird is self-righting, hollow northern white cedar with a basswood head and a weighted oak keel.  This one hasn't been hunted over yet, since it was carved as a retirement present for one of the guys here at Thief Lake.