Here's a breakdown:
Possible Meanings:
* Alertness: The horse might be focusing on something, like a noise or movement, and is preparing for a potential threat.
* Anxiety: The horse may be feeling anxious or stressed, perhaps due to a new environment or a perceived threat.
* Aggression: Tilted ears are often a sign of aggression, especially when combined with other body language like pinned back ears, a flared nostril, and a tense body. The horse might be feeling threatened or protective of something.
* Frustration: The horse may be frustrated, perhaps because it is being asked to do something it doesn't want to do.
* Playfulness: In some cases, tilting ears back can be a playful gesture, especially with horses who are familiar with each other.
Important Considerations:
* Context is key: The meaning of the tilted ears depends on the horse's overall body language. Pay attention to other cues like the horse's posture, tail position, and facial expression.
* Individual differences: Every horse is an individual, and their body language may vary. Some horses might be naturally more sensitive or nervous than others.
If you're unsure about a horse's intentions, it's always best to err on the side of caution and give it space. Avoid approaching the horse directly and let it calm down before interacting with it.