Cow "muffins" are scary objects and need to be carefully watched", according to Breeze, Kim's Quarter Horse Filly.
She really does appear to be giving them a suspicious once over. Her body language says that she is getting into "flight" mode.
Years ago, Snickers,a Thoroughbred/Arabian/Welch Pony mixed breed young horse of mine, suddenly shied when he spied a pile of his own manure during an enjoyable late afternoon ride.
All hell broke loose and the bucking bronco show began. You should have seen the shocked expression on my face. I managed to hang on, fortunately.
In retrospect I suspect that the shadows which were made by the setting sun must have made his little "pile" very frightening to him.
Do your horses spook at what we think of as innocent objects? Share your experiences by leaving a comment.