Hindsight is always 20/20. I am always cautious about spooking roosted birds. You could try starting from higher or on same level. I have also noticed that this year I don't know if its the late spring stuff or what but it seems the birds that I have killed this year really want to be called in. You back of and they loose interest. In your situation with heavy pressured birds take there tempeature start off light and crank up if you have to. Sometimes it's just turkeys being turkeys. Good luck talondale! Keep hunting hard and your hard work will usually pay off