What's the name given to a female horse who's aged 4 or older.?

Question

What's the name given to a female horse who's aged 4 or older.?

Answer 1

A mare.  Unless it's a Thoroughbred racehorse, then it only becomes a mare at five.

Answer 2

4 is a filly.

5 and older is a mare.

The exception is when a 4 year old is used for breeding... they usually get termed a mare even though they're not 5 yet and are technically still a filly.

Answer 3

Mare

Answer 4

A mare would be a female horse who is 5 or older. A 4 year old female horse is still a filly.