Sounds:
* Snorting: This is a common sound horses make when they're agitated. It's a forceful expulsion of air through the nostrils, often accompanied by raised ears and a flared nostril.
* High-pitched whinny: This can be a sign of anger, especially when paired with other aggressive behaviors.
* Nicker: This can be a warning sound, often accompanied by a tense neck and raised head.
* Growling: This deep, guttural sound is rarely heard but signifies extreme anger and can precede a bite or kick.
* Teeth grinding: This is a more subtle sign, but it can indicate tension and frustration.
Body Language:
* Ears pinned back: This is a clear sign of aggression.
* Tail swishing: A fast, forceful swish of the tail can indicate agitation or anger.
* Head lowered: This can mean a horse is preparing to strike.
* Muscles tensed: The horse's body will become stiff and tense, ready to react.
* Staring: A horse may fix its gaze on the source of its anger.
* Lunging or charging: This is the ultimate sign of aggression.
Important Note: Horses communicate through a complex mix of sounds and body language. It's crucial to understand their individual personalities and to observe them carefully to interpret their true intentions.
It's always best to err on the side of caution and give a horse space if you suspect it is angry.