Under-cover ponys

Dad and I want to get feed and of course I took my camera. I was leaning out of the truck window and saw these pony's or that is what I think they were. They had feathered hooves like drafts, but they were the size of pony's.
This is the under-cover sshhhsssshhh! agents :

Can you guess what they are? 
      xoxoooxo,
 Neighgirl