What is it??

Okay, we're having a debate here at Monticello.  Nobody seems to know what he is.  I say he because he has little horns (and a little somethin else attached to him!).  He's not just your typical deer.  I have my guess but I want to see what you come up with.  So come on....help us out here.  What do think.  What is it?  I'll keep you all posted.