What are those enormous flies?

[teasle]

Much bigger and scarier than horseflies - had 2 around my horse yesterday and they REALLY bother him (back leg kicking at belly).

 

[Cherrydan]

Wow! Me too, yesterday was horrific for him. They were the size of my little finger nail and more Brown than black. It's official I hate this weather for flies...fly spray won't work either so they must be sight predators.

 

[*hic*]

Oh hell, why on earth did I just google bot fly image

I feel SO sick!