I see these fly bonnets worn by horses in all the English competitions all the time. They often have rhinestones or jewels sewn on them and are often bright colors with lots of detail. I think they are more for glam, but in the show circuit they are also for muffling out sound for horse's keen sense of hearing. I, however, decided to purchase one for fly control.
We ride all through acres of country and there is one spot in a several acres located near a pond and a creek that harbor these nasty "horn" flies. There are a bunch of them. Their bite is like a needle going into your skin. And for some reason they mostly go for the ears on horses. Me and my boy HATE them. He's flicking his ears and shaking his head and I'm slapping and swatting for about 10 minutes on our ride. Disgusting and disturbing!
So, we took this into our own hands and here is our result...
Some old cowboy at the barn said while laughing "what's that THING on your horses head?" "Peace and serenity" I said and kept right on riding!
Encourage One Another, continuing the journey on fresh paths.
Blessings and love to you, xoxo.