i am a new duck hunter and ofcourse am trying to learn how to call.my question is what is the difference between cocobolo,acrylic,polycarbonateand poly acrylic. i have two calls , a nasty boy and a little joel both are $30.00 calls.and last but not least when you do a feed call does tour tounge stay at the base of your teeth or does it move .

don't know about the first half of your post, other than the cocobolo is wood, the others are not.. Feed calling you have the pecking feed call, which I do by saying tic-toc into my call, and for the rolling feed call I say diga-diga, or ticka-ticka. Other people will say different things.. Start slow, and eventually, with practice, you will get it.