What does this traffic sign indicate?

This traffic sign indicates a warning related to horses on or near the road. It serves multiple purposes:

1. **Danger in connection with horses**: It alerts drivers to be cautious as there may be horses present, which could pose a danger due to their potential unpredictability.

2. **Priority for horseback riders**: Riders on horseback may have priority over motor vehicles in certain situations. This is important for drivers to understand, as they must yield to horseback riders when necessary to ensure their safety.

3. **No through-traffic due to a bridle path**: In some areas, this sign could indicate that a road is associated with a bridle path, which may restrict motor vehicle access.

Understanding this sign's implications is essential for ensuring safety for both drivers and horseback riders, and recognizing all relevant aspects enables better compliance with traffic regulations.