Titliest,
I dont think your doing much wrong although I agree with S&R in setting up closer,(to bad you cant).The problem I believe here is he has hens your not seeing/hearing or he has hens roosted close by and pitch's out of the roost to them.If this bird was by himself you would here him hit your calls at least occasionally on the ground.Best bet I believe is wait him out as long as you can legally hunt in the woods.Those hens will eventually leave him possibly later in the day or even a week from now.PERSISTANCE PAYS OFF!!