NO... it's called years and years of AMBUSH VULTURE HUNTING IN PA....these days, the norm seems to be, one cluck or yelp and they are GONE... thanks to our fellow ambushers without ever making a call, those who sit near the roost areas and nail them with half their foot on the ground, let the rest see that afew times and you'll see what happens to your area after that,wellthat's what we have left to deal with for the most part, you are not alone and it more than likely has nothing to do with anything your doing... don't worry, the ambush, never make a call boys will hear them and the killing will commence until they are all dead. ... posted or not, it makes no difference to the vast majority of PA's finest ambushers.. and they account for a large percentage of these modern day vultures so called turkey hunters, I've seen countless bird this year being hauled out of the woods and haven't heard a single call made by anyone, their getting so bold lately that they surrounda call hunter and blast anyting that responds to any sound he makes, it's getting sicking latley.....I perosnally have had a least 4 longbeards killed within 75 yards of me this season alone..it's getting a little old..