Elk can digest hay with no problem. Whitetail can also, but mule deer can take up a couple months for stomach enzymes to adapt to hay. They can die with a full belly and think that they are full. I have spilled COB in areas that they frequent in the winter because they can digest it partially. If you feed them in the same place all the time they will not get the nutrition that they need to survive. As Steve just said they will die. No, I don't have the answer, but sometimes mother nature thins the herd to prevent disease like CWD. Another snow storm is coming into my area tomorrow. I just hope it melts away soon.