I agree with ditching the blind if your not bow hunting. Also, many disagree, but if your using decoys, stop. I try to get something between me and the bird and about 35 yards from me if I can. That way he has to clear it before he thinks he should be able to see a hen. By then he is already in range. If he thinks a hen can see him he might not come in the rest of the way. Fallen trees, wall of brush, or peak of a knoll are what I mean by something that blocks their view. Only bad thing is that it blocks yours too.
Hope this helps!