Jack O'Connor considered Coues whitetail deer "the most difficult of all deer to kill". Hunting a Coues deer today is the epitome of a classic western big game hunt. SCI is proud to welcome back USAF Veteran Captain and SCI Life Member Dan Adler, the owner of Diamond Outfitters of Arizona & co-host of The Best of the West, to share with us the tactics that have led his clients to a nearly 100% harvest rate on these wary deer.