A horse shakes off flies in a field at Washburn-Norlands Living History Center in Livermore, Maine on Sunday afternoon July 28, 2019. Russ Dillingham/Sun Journal

A horse shakes off flies in a field at Washburn-Norlands Living History Center in Livermore, Maine on Sunday afternoon July 28, 2019. Russ Dillingham/Sun Journal

A horse shakes off flies in a field at Washburn-Norlands Living History Center in Livermore, Maine on Sunday afternoon July 28, 2019. Russ Dillingham/Sun Journal

A horse shakes off flies in a field at Washburn-Norlands Living History Center in Livermore, Maine on Sunday afternoon July 28, 2019. Russ Dillingham/Sun Journal