We have 2 2year old rabbits, a spayed girl and neutered boy. They were bonded successfully more than a year ago. The day before we went to a bunny gathering with many other rabbits. They did interact with the other rabbits but mostly hung out together. When we went home they were fine as well, but this morning they started showing unbonding behaviours, which worsened and increased in frequency throughout the day, including: nipping, chasing and humping.
We’re fairly certain it has to do with the bunny gathering. My hypothesis is that our daughter rabbit stepped in urine at one point, which could have been that of an unspayed doe, and the scent may be throwing our son off. We cleaned both of them using baby wipes and dried them off, including the perianal area of our daughter which we noted to have a musky scent.
It seemed to have a minor effect as they’ve been an hour without fighting, but my son did nudge my daughter twice. We’ve also considered underlying medical illness that may have caused this behavioural disturbance, but both have good appetite, good urine and bowel output and no temperature.
Would you have any advice for us? Specifically for this situation where unbonding may have been due to interaction with other rabbits? Thank you!