My guess is if there was a gobbler in that same roosting area, you would have heard him about daybreak. If not then should have been able to fire him up with a shock call while they were still roosted or a few soft yelps once the hens hit the ground. If these hens are roosting in that same general area consistently, I'd be back in there often. My gut feeleing is that a gobbler will show up sooner or later.