buck

The term "buck" refers to the male of several animal species, including deer, antelopes, goats, hares, rabbits, and rats. Specifically, it is often used for male deer and antelopes.12

In zoology, a male goat is also called a buck or billy. Goats are ruminant, hollow-horned mammals belonging to the genus Capra. They are related to sheep but are lighter in build, have backward-arching horns, a short tail, and straighter hair. Male goats typically have beards.3

Goats were likely first domesticated in Asia and are valued for their milk, cheese, mohair, and meat. Their skins can be made into leather.4