The Stinger Pro Series Yellow Venom from Woodhaven Calls was designed to be an all-purpose medium sized call. The Yellow Venom is a very versatile call that will do a pretty good job at calling most species of birds, but will have a tough time calling cottonmouths. This call will do a pretty good job at calling cottonmouths as well. You can do a pretty good imitation of a cottonmouth with this call but if you are looking for one to do a pretty good job at a fairly moderate distance, then the Yellow Venom is your call. It will do a pretty good job at a medium sized call, but if you are a small, medium or large caller then this is the call for you.image