No, it's "Nanny"
Nanny goat or doe.
The plural form is billy goats.
The female name of a goat is doe, they are also known as nannies.
Female goats are referred to as a doe or a nanny.
The female equivalent of a (male) billy goat is a nanny goat.
The male goat may be a billy goat, while the female is a nanny.
In English there are no masculine or feminine forms. English uses gender specific nouns for male or female. The noun 'billy' is an alternate noun for a male goat. The alternate noun for a female goat is 'nanny'. The noun 'Billy' (capital B) is a nickname for the name William or Bill. These names are traditionally a male name but not exclusively.
Can be female, Wilma, Wilhelmina.
Andie spelled with an "ie" is generally a girl's name while Andy is a boy's name. Same goes for Billie (female) and Billy (male) Johnnie (female) and Johnny (male)
A doe
Nanny goat.