The A-Way Bowgrunter plus. Bowgrunter Plus is the world's only patented social deer call. All deer are very social by nature and they must verbally communicate with one another throughout their lives regardless of status, or dominance. A deer's social verbal communication is so soft and subtle that many hunters fail to hear it. It was this very soft, subtle and once secretive sound that we have duplicated precisely, thus creating a deer call that has proven to be extremely effective during the rut. This call has become known as the premier deer call for good reason, it produces results.