Was it a foggy morning at all before it cleared up? Sometimes that will keep em on the roost. Sounds more like to me it was because you were calling to him on the roost. I know some people do give a tree yelp once and then be quiet but I dont even do that. I never and I mean never call to a bird on the roost. It will work against you more times than it will help you.Sounds like that Tom heard you calling and kept waiting for that hen to show up under his tree and it never did. Just my opinion but do not like to call to a bird on the roost except maybe once at the absolute most. Think maybe you were calling a little too much and he was just hanging out waiting for the hen to show.