It' s a fact that if you think there are no turkeys in a given spot just because they won' t gobble at your owl hoots at sundown, you' ll be passing up a lot of places that are holding turkeys. I have found that they won' t gobble on the roost in the evening more often than they will gobble. That' s why I don' t go and try to roost birds unless things get really desperate. But if you do get a bird to gobble the night before, then you have a much better chance at taking that bird if you can get in close to him the next morning.