Christmas cows?

Another clue in the mystery that is little Miss' mind - Christmas cows. Mama tried to make a little holiday vignette with the fake snow, trees, and advent house. Mr. added Santa and his sleigh on the roof, and the bird. Ok so far -- seemed to generally go with the theme. But then little Miss added 2 cows. I've tried removing the cows on several occasions (like after she goes to bed) but they keep reappearing. So, I'm just going to go with Christmas cows.