Is a heifer masculine or feminine?

In English there are no masculine or feminine forms. English uses gender specific nouns for a male or a female.

The noun for a female is sow; the noun for a male is a boar.

The gender specific nouns, boar and sow, are used for:

• badgers
• bears
• boars
• guinea pigs
• hedgehogs
• hogs
• pandas
• pigs
• prairie dogs
• raccoons