Just in regards to the baby, are you able to see if the owner will hold onto her a bit longer until you take her? That would be the most ideal situation.
Even if she’s stopped nursing, it will benefit her to remain with the Mum longer so her good gut flora builds up. They do this by eating some of the adults rabbits normal poop and cecal poop. It would put her in a better position for good gut health through her lifetime.

I think the term weaning with rabbits is misunderstood a lot. A kit stopping taking the milk is not all that’s involved. There is an adjustment period where they get accustomed to solid foods and the gut goes changes in the pH and innoculation with the good bacteria. Its a critical time and stress of being removed does not help.

If you get her, take her to a vet asap. A baby usually weans around 5-6 weeks, and if she’s currently 4 weeks old and been away from mom for weeks, she could be very fragile because she wasn’t even weaned, just instantly taken away.

Posted By Sarahdipitey on 4/12/2018 8:16 AM

Yes that would be ideal. But unfortunately she got the baby bun as a gift on Easter and the baby has been apart from the mother for weeks

This makes me so sad. Why are humans so evil. This rabbit is a life, not a seasonally disposable object.

It’s normal that your 1 year old bun is trying to bite the baby as she isn’t spayed and may feel the need to protect her territory against a foreign bun.

The baby is still a baby but once it grows up and becomes hormonal, most likely he/she will also try to nip the other.

You may want to widen the gap between their cages for the time being as rabbits can still get to each other through bars if their cages are side to side. Since Stella is a year old, she should be old enough to be spayed already. That would help with her hormones but you will still have to wait till baby bun is grown up and spayed/neutered until you can begin the bonding process properly.