RE: won't shock gobble
sometimes they are like that. around here in NY where i hunt, we used to be able to slam a car door and get a response.
nowadays, crow and woodpecker calls wont get a peep out of them. must have smartened up..... i still have limited luck with a hawk screetch, and i'm going to try a peacock wail this year. heard that works.
the best is when the local quarry is going to blast, they start hitting this ridiculously loud siren 1/2 hour before. the birds go nuts!
if i could carry a 200DB siren in my pocket, i'd have it made!
you found the birds, stay after them!
good luck!