Fly Predators on Mackinac Island 

Mackinac Island at the tip of Michigan in Lake Huron is a unigue and magical place. Entirely powered by horses, with no cars allowed, its like a step back to the 19th century. This video is snapshot of beauty of Mackinac and describes how the island has eliminated the problem that 500 big draft horses on an island of only 6 square miles can cause... pest flies.
The city of Mackinac provides Fly Predators to all the residents of the island and has completely eliminated the problem that flies can cause.
For more information on Mackinac Island go to mackinacisland.org