Originally Posted By: Blue Moon
If GBH's are the problem, but a GBH decoy through Cabela's or Bass Pro and stake it out and walla...end of problem...GBH's are extremely territorial and will not usually land where another one is already...It has worked for me 100%..they just fly on by..I had one anyways as a confidence decoy for waterfowl hunting here in Ky..They really do work..Or at least here they do...

http://www.basspro.com/Flambeau-Egret-and-Blue-Heron-Decoys/product/35028/


Happy to hear this worked for you. Reviews seem to be 50-50.