I have a glass, a long box, an owlcall along with a gobbler.. I tried my owl call last year in an area I knew the birds were roosting in. I thought I got a gobble back and then a group of owls scattered out in that area started hooting back at me.. So I could not say for sure as the owls interupted everything.. I have tried my gobbler call a few times and recieved a few responces biut nothing very encouraging..