male horse called

Horses
What is an old female horse called?
4
Horses
What is a mother horse called?
11
Horses
What do you call castrating a horse?
57
Horses
What are the names for a male horse?
39
Horses
What is a female horse with a baby called?
73
Horses
What do you call a girl horse rider?
38
Horses
What do you call a female racehorse?
225