Try some Bach Rescue Remedy for pets.  Might need help administering it or you can put it on a treat they like that will soak it up.

This aggression is hormonally driven, and worsened by the fact that your buns are housed near but not together with other intact buns. It is “normal”, so itsnot worrisome in that respect.

I recommend using thick gardening gloves when you do cleaning etc. If they bite the gloves you can be more or less indifferent to their biting. This is important, because if you withdraw suddenly when they lunge, they will consider this a “success” and keep lunging when you come near. If you have protective gear on, you can just go about your business and the buns will be like Oh well, biting doesnt work, I might as well not bother. (Not in so many words of course, they won’t be reasoning like an adult human would. But the mechanism is the same, success reinforces any behavior).

Awww I’m sorry its a difficult time with the buns 🙁 it does sound like hormonal, territorial behaviour.

Spaying and neutering really does wonders for this type of behaviour, usually spraying and aggression will stop after neutering. Do you have any updates or dates for the vet appointments yet?

what is their housing situation? Is the male in the same room as the females? If so that could be making things worse.

I’m also wondering if it might help to change clothes between interacting with the buns. Rabbits are super scent oriented so having something like a hoodie that is only worn when dealing with the male might help.

I’ve also heard of people leaving a worn sock in the bun’s enclosure for the bun to sniff/attack/investigate so the bun can realize you aren’t a threat by getting used to your scent, so that could be something to try too.

That’s great! Maybe he was just having a surge of hormones before that made him extra cranky? Cranky teenagers are a thing 😆