Wagtail

Tiny, on the edge of one of many large puddles in a muddy field, I saw his tail bounce. There was nothing for it but to trek across and wade through, my boots getting heavier and heavier with sticky mud as I slid across but luckily for me the dogs took one look and wimped out.

 Got to say he wasn't very impressed with my efforts and flew to the other side which for me was a step to far.