Guess What I've Got?

So today, I was in the kitchen and I noticed Cider slinking past the window with something very large in her mouth.  I went out to investigate and saw this:

At first I thought "what the heck?"  It looked like she slaughtered a small animal or chewed up a fence post.  I think it is actually a long buried BONE!  It is covered in dirt, yuck!

Clint and I kept trying to get her to come closer so we could check it out.  She warily circled around us but wouldn't come too close.  Can you see the suspicious look in her eye?

She's a dog, that's what dogs do.  I guess.  But I really can't understand why she would want to carry that dirty thing in her mouth like that.  Ew.

Silly Cider!