I saw three deer running full speed about half a mile from me. This was out in open fields, pasture etc. They turn and come right down the field toward me. Of course I was on them asap with my binocs, and could tell the last one was a buck, not a shooter but above its ears. As they got closer, it turned out to be two bucks chasing a doe! They get into the creek bottom and she is going FULL tilt! Back and forth around and around, now they pick up yet a third buck!.....Then another doe gets in the chase and two bucks chase after her....the smallest of them mounts her and attemps to breed but the bigger one comes back and runs him off. he goes back and mounts her and successfully passes his gene pool on!! He was a young fork but had much potiential!! The doe was exhausted, and eventually bedded up with the buck staying close by. This is the second time Ive seen a buck and doe mate.