I hesitate to post because I can’t find the pictures but fall of 2019 I took a buck that was a mule deer - whitetail hybrid. Head, antlers, ears, and color were of mule deer. Belly hair, rear legs, and tail were of whitetail and favored the whitetail colors. He was with 6-8 whitetail does. This buck was taken in one of the 600 units in eastern Montana where I typically hunt mule deer.
I’ve put a lot of deer in the freezer but this was a first and only for me.