Whitetail Deer Research L.L.C.

Game camera photo from a Whitetail Deer Research observation post. Fencing is around apple tree plantings. 

Whitetail Deer Research, LLC is an independent research company that studies the hearing abilities of whitetail deer and other animals. Our audiogram for the whitetail deer, published by the Acoustical Society of America, is the industry standard (click here).

We offer manufacturers the service of testing their products on whitetail deer. Examples of this service include:

 1. Determine the quietness of hunting equipment (bows, clothing) to deer.

 2. Determine the range and effectiveness of deer calls and deer repellers.

 3. Design sounds for deer hunting, such as the Heffner Alert Sound, which causes a deer to stop and look around, but does not reveal your location.


In addition to laboratory testing, we maintain field stations that enable us to examine the reactions of wild whitetail deer to sounds in their natural habitat.

Although we specialize in testing deer, we have the capability to test other mammals as well as birds such as turkey and waterfowl.


For more information, contact Henry E. Heffner, hheff@adelphia.net

About Us