Decoys can work well and then other times will give you negative effects.
Watch the birds in your area and adapt your set-up to their normal field arrangement. tightly bunched decoys gives the appearance of danger........spread them out a bit.
Here pick out the decoy(s)!
And another this one is easy......great picture for new hunters to identify if the bird is a Jake or a Tom.
And after he was done with the above decoy this guy went over and wiped out my standing hen.
This is one of my favorite set-ups. Actually I have been using strutting Tom decoys way before they ever got popular. Sometimes they work and sometimes the bird is sub dominant and "hangs up" well out of range....
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There is more information in the Tactics sub forum.
JW