Sounds like a scuffle happened. Babies tend to get along with everyone, but once they start becoming hormonal you may need to separate them to prevent fighting and injuries. They can be rebonded later after everyone is spayed/neutered.

Are you sure they are all female? Sometimes young rabbits are misgendered. Even if they are all females, they will still fight. One thing to be concerned about is if one of them is actually a male. If they are together too long, you may end up with “oops” babies.

Agree with LBJ10. This is unfortunately a common problem. We actually have a pinned post about it that might be helpful: https://binkybunny.com/forums/topic/help-why-are-my-rabbits-fighting-by-dananm/

Are you positive on their ages? It sounds to me like the boy (lionhead) is starting to get a little taste of hormones. This can happen relatively young, before they hit full-on puberty. I’m talking 10-12 weeks-ish. My guess is he was the one who started the scuffle. I think it’s time to separate him from the girls before something happens. You might be able to keep the girls together longer as long as there’s no fighting. But be prepared to separate them as well if things start going downhill. You can always rebond them later once everyone is spayed/neutered.

How long have you had them, and are you very sure on their ages? Usually buns are separated from their mom’s at 8 weeks, so I would be surprised if they were really that young.

In any case, since you have some scuffling and are not 100% sure on their birthdays, definitely separate the male, and keep a close eye on the females. Females can get pregnant at 12 weeks. Get everyone spayed and neutered as soon as possible and you will hopefully have an easy time re-bonding them after that.