A female rabbit is a called a "doe," just like a female deer. Sometimes a female rabbit is called a "jill," but that's not very common.
Yes, young rabbits are called "kits" or "kittens."
liveret
Males are bucks. Females are does
If the rabbits are around 6-8 months of age, they could be going through sexual maturity. Otherwise consult a vet if there's ingury. Usually when a rabbit is going through sexual maturity one or both...