So....Monty pooped for the first time, within a few days of us getting him on Nov.15th. Since that day, he has eaten 5 mice & one small rat, without pooping. Today was feeding day and when I went to put the mouse in, I noticed some urates behind the thermometer base. I moved it to be able to get at it, and saw that he had pooped too. Then, when taking it out, I noticed that the one end of the poop seemed to have fur on it & kind of resembled the shrunken head of a mouse/rat. Is that normal? Do they not digest fully? For a moment I almost wondered if it was actually regurg & not poop, only because it didn't smell at all. The first time he pooped, it stunk up the whole house.

Anything to be concerned about here?