What is the feminine name for a fox?

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

The noun for a male fox is dog.

The noun for a female fox is vixen.

The noun fox is a common gender noun, a Word for a male or a female.

In the animated movie The Fox and the Hound, Todd meets a female fox whose name is Vixey. This is a take off the Word for female fox.