THE CAN family of calls has been so effective at calling deer up close that it has revolutionized deer calls. Whitetail, Blacktail and Mule Deer can all respond quickly and dramatically to the doe Estrus? Bleats produced by THE Original CAN and THE GREAT BIG CAN. After all, this sound is the most recognized sound in the deer language. During the pre-rut, rut, and post-rut, it means one thing - I am ready to mate. Used in conjunction with a grunt call, it means a hot doe is with a buck, which only increases the urgency of another buck to get in on the action. THE GREAT BIG CAN has been tuned to be louder and longer for long-range calling. It's perfect for windy days and hunting wide-open fields. You can't beat the quivering Estrus? Bleat that has made THE CAN family of calls so accurate and effective. We guarantee it!