What is the name for a group of horses?

A group of horses is called a herd. This term is commonly used to describe a social group of equines that typically live together in the wild or in managed environments. Herds provide safety in numbers and allow horses to interact socially, which is important for their mental well-being. In managed settings, understanding the herd dynamics can also assist in providing proper care and management practices.

The other terms listed refer to different groups of animals. A flock usually refers to a group of birds or sheep. A pack is typically used to describe a group of canines, such as wolves. Mob often refers to a disorderly crowd of animals or is more specific in its use with certain species like kangaroos. Thus, the correct term for a group of horses is indeed herd, reflecting their natural social behavior.