I just e-mailed deer researcher T.R. Michels, and he said that there is no evidence of a whitetail deer growling for 20 minutes. The longest call of a whitetaqil buck was a7 second grunt while the buck was followign a doe.

A buck might use a "grunt" towarn off other deer, but it is never more than a few seconds in length, and it would notcontinue for more that two or thrre times over a 1 minute period.

Must be something else.