Baby bunny poops pees and bites

[Kiwi]

We got a 7 weeks old holland lop bunny about two weeks ago (from a family, not a petshop). He has a cage in which he is at night and some parts of the day, but during most of the day he is free to go around the appartment.
He seemed very attached and easygoing, in the beginning, but started recently leaving a lot of poo on the couch. He seems to jump on the couch on purpose to poo.
The situation got worse yesterday, when a male visitor came over. He kept approaching the visitor, jumping on his lap, but biting quite hard. When trying to put him away, he would just come back and continue.
Afterwards, the pooing on the couch got even worse and he even peed on it.
This morning, he seemed more nervous and less affectionate.
What can we do to change this situation?

[Bam]

It sounds like your baby bun is starting puberty. Poopmarking and going out of his way to poop mark in high-value places is typical. Aggression is also not uncommon when a bun starts puberty. It seems your bun perceived the visitor as an intruder -rabbits are highly territorial.

The recommendation is to have him neutered. Technically that can be done as soon as his testicles descend, but some vets prefer to wait a bit longer. Testicles as a rule descend from 12 weeks of age.

Meanwhile, you should block him from accessing the sofa and your visitors. You may have to restrict his movements even further in case he starts to spray pee (=pee marking). It’s not really possible to train a rabbit to suppress hormonally driven behavior. Neutering is the only effective remedy. It is a very effective remedy in most cases and most of us here have neutered buns.

[Author]

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