Wood pigeon decoys at the least. These you can get from any major supplier usually (Not sure about the States, but Europe EVERY supplier has them). I use a mix of flapper, floaters, whirlys, shells, and full bodied deeks, then increse the decoy pattern with dead birds as they are shot (Use either dead bird decoy cradles, or a lollipop stick under the head to give the impression of head up). Also bang one or two crows and a magpie deek on the edge of the decoy pattern, gives the pigeons confidence
__________________
If it moves and is legal but also moral, SHOOT IT !!