forelock

The forelock is a part of a horse's mane, that grows from the animal's poll an falls between the ears and onto the forehead. Some equines, such as ponies, have a naturally thick forelock, while other breeds (such as many Thoroughbreds) have a thinner forelock. The forelock is thought to help keep irritants out of the horse's eyes. However, should it pick up debris such as burrs, it could be more irritating than helpful. Therefore, it should be cleaned if it collects objects.