What Is a Group of Colts Called?

Rag is the term most commonly cited for a group of colts, and rake appears as a close, older variant in some historical wordlists. Both are distinct from the more general horse-group terms like “herd” or “string,” specifically marking out young, unbroken males.

Where Did the Name Come From?

Like several English horse-related collective nouns, “rag” and “rake” trace back to older regional stable and breeding vocabulary rather than the more widely known Book of Saint Albans hunting tradition, developed instead alongside terms like “string” and “stud” used by people who actually bred and worked horses day to day.

Colt Facts

• Definition by age and sex: a colt is specifically an uncastrated young male horse under four years old; a young female is a filly.
• Rapid growth: horses reach most of their adult height within the first two years, though bone density and muscle continue developing longer.
• Play behavior: young colts engage in extensive mock fighting and chasing play, which helps develop coordination and social rank before adulthood.
• Gelding option: many colts not intended for breeding are gelded (castrated), typically becoming calmer and easier to manage as riding or working horses.

Example Sentences

• A rag of colts kicked up dust chasing each other around the paddock.
• The rancher kept a rag of colts separate from the mares until they matured.

Frequently Asked Questions

What is a group of colts called?

A rag, with rake used as a close, older alternate.

What is the difference between a colt and a filly?

A colt is a young male horse under four years old, while a filly is a young female horse of the same age range.

How fast do horses grow?

Horses reach most of their adult height within their first two years, though bone density and muscle continue developing longer.

What is a gelding?

A gelding is a castrated male horse, a status many colts are given if they aren’t intended for breeding, typically making them calmer to handle.