Rig up your jake decoy with a hen decoy so they look like the are breeding. Him on top off her. You might try one of the Primos videos for the fightn purr or contact them on line to give you directions on how to do it. Basicaly its real load and constant purring with a few 2 note yelps. But don't use this with the breeding decoys use it with 2 hen decoys facing each other also if you have one of those Primos wings you can flap and beat that about when you do the fighting purr, Just make sure the birds are not to close to see you flapping it.