I've been a hunter and tracker for a long time, I recently spooked up a sleeping fox, I checked the tracks in the mud and they looked exactly like the ones pictured here. As far as baiting the chicken house, I would buy a store bought chicken and find a way to hang part of the chicken from a rope or wire very near to the chicken house, just high enough so the fox can't get to it easily. Once this gets his attention off of you, then he's all yours...