The proper noun is a Herd
A 'herd' is a group of horses.
Sire
a group of horses is called a herd, and a male horse is a stallion
In Australia, a wild horse is known as a brumby.
CLYDESDALE
Hipposandals
Reins!
The general name given to the elements of Group IA (1) is alkali metals.
A group of kangaroos is called a mob.
antifederalists
Brigade
coven