You have a lot of choices here any fxp, mp3, wav,24b format is loadable on your Shockwave. Randy Anderson, Primos, Western Rivers have sounds that are loadable some free some you buy. You can even record and load your own hand call sounds and don't let me forget Varmit AL he has a lot of free sounds and sequences and a lot of other interesting info on his site. So your options are vast. By the time you have exhausted the options above you should be out of critters. Hope this helps.