https://bambi.fandom.com/wiki/Thumper%27s_sisters

This is a placeholder where it's clearly one of the sisters of Thumper by context.

They all look very similar and are hard to tell apart, and sometimes artists do not specify which one it is.

Four names are mentioned in the story "Thumper" (Blossom/Violet/Milly/Frilly)

Four more are mentioned in "Thumper Finds and Egg" (Trixie/Daisy/Ria/Tessie)

They have some similarities with his love interest Miss Bunny (blue eyes) but their fur is more "cream" instead of her "peach" and their cheeks are not quite as plump.