Last week I had a post on that horse that made awful noises when the other horses left camp. Horses are normally quiet do make a range of noises.
When you take a horse out to the pasture the first thing they normally do is lie down and roll. When they get up they shake like a wet dog trying to shake of being wet and they make a noise like when a human shakes their head back and forth.
When they are in their stall or paddock and you suddenly appear to take them out or to feed them they often make a humming noise which sounds like “Humbumbumbumbumbum.
Sometimes when they poop they will make a straining-grunting sound.
There is a squeal that horses do when they are checking one another out or when one horse stops grooming another horse. This sound is usually emitted by the less dominant horse or by both when they are of opposite sexes.
Thoroughbreds make a short happy rhythmic breathing sound when they canter, like a panting.
My favorite sound, though it is sad is the sigh. When a horse is bored or anticipating it will often sigh. You’ll hear it when a horse is saddled, but tied up and not going anywhere. You’ll hear it when the horse is out of hay and knows feeding time isn’t for a while.