Some of the factors for the late season hunting being tougher in my mind are...there are less birds, and alot of the "Dumb" 2yr olds have already been fried up! The foilage like buzzcut said, and the fact that the breeding season is winding down! I mean, the toms have been on it for almost 2 months gobbling, fighting, i believe it takes a toll and they start their recouperation stage in late may! Take all that, and then figure in all of the previous hunters in the earlier season throwing the book at 'em, i believe theyve heard it all by the last 2 seasons!