Through the larynx which is their voice box
The animal that typically makes a "Clop-Clop-Clop" sound when it walks is a horse. This sound is produced by the horse's hooves hitting the ground in a rhythmic pattern as it walks or trots. Horses have hard hooves that create a distinctive sound when they make contact with a solid surface like pavement or hard-packed dirt.
Horses.
It means that there is nothing wrong with the horse's hooves. A horse is not sound if it has thrush, wind puffs, etc.
Train it.
a neigh
Neigh!!!
Relinchh !
niegh or whinnie
A horse makes a whinny sound.
You can create your own horse on http://www.howrse.com/ have fun! : ) Another site is horseland.com
The OR in horse has a caret O sound (long O + R). The E is silent. *In British English the OR has the AW sound rather than a long O (ore) sound.
The warning sound a horse would make in this situation is a loud blowing out, nostrils flared, eyes wide, ears forward and alert. This blowing sound will get the attention of any horse in the immediate vicinity.