But Mom there are deer in the back yard!

Two nights ago Wilber got up around 2:00am and needed to go outside.  He runs into my bedroom, shakes and puts that cold wet nose of his on the back of my neck. GET UP MOM! I get up and we go to the kitchen so he can go out into the backyard and take care of business. I open the door and he looks up and races across the yard at full speed and starts barking. There was a small herd of about 6 or 8 whitetail deer standing just outside the fence. They see Wilber and bolt. He wants to chase them, but can't because he's inside the fence. He is so furstrated that  he runs at full speed in several  big circles. Well it has been rainning for days and of couse the yard is soaked through. When he finely comes in he is covered with mud from head to toe. Mud is dripping on my kitchen floor, he shakes and now I'm covered in mud too. I have to get a wash rag and towel and wipe us both down. Once Wilber is all clean and dry he gets his cookie and goes back to bed.  I have to finish cleaning up the kitchen before I get to go back to bed.
Last night Wilber got me up at 2:10, 3:40 and 4:23 am so he could go outside and look for the deer. It's was like he knew they were out there, he just couldn't hind them.    (See Photo Below)
Now that I'm awake and can't go back to sleep. Wilber and Pooh however don't seem to have that problem. They look very comfortable.