Any herding dog will do it if they're trained. Corgis were bred to be so small for herding cows so if they kicked the hoof would go over the dog rather than hitting it, so it would probably be useful for horses as well.
Given a choice, horses, whether wild or domesticated, prefer eating in herds.
yes
horses and cattle are known as herds
No, horses are not herds, they are animals, but they do live in herds, and do not hold up well when left without a herd, even if this herd is only 1 other animal.
No. They simply establish dominant horses in herds.
yes they gather in herds.
horses and wolves and coyotes
yes, they travel in herds.
yes they live in herds
horses.
Domestic horses are everywhere, but feral horses are found in small herds on the Outer Banks.
Paint Quarter horses may live in a stable with other horses as pets and companions. If they are wild they live a group called herds with a bunch of other horses. If they are in herds they may live in Alberta, Virginia, out west and places like that.