1. Place a litter box in the corner of your rabbit's cage where they spend the most time.
2. Fill the litter box with a layer of rabbit-safe litter, such as shredded paper, hay, or commercial litter.
3. Place some of your rabbit's droppings in the litter box to help them understand what it's for.
4. Whenever you see your rabbit about to go to the bathroom, gently pick them up and place them in the litter box.
5. Praise your rabbit and give them a treat when they use the litter box.
6. Be patient and consistent with litter training. It may take some time for your rabbit to learn, but eventually, they will get the hang of it.
Here are some additional tips that may help:
* Make sure the litter box is large enough for your rabbit to comfortably turn around in.
* Keep the litter box clean by removing any solid waste daily and changing the litter every week or two.
* If your rabbit has an accident outside the litter box, don't punish them. Simply clean up the mess and try again.
* If you have multiple rabbits, you may need to provide more than one litter box.
With a little patience and effort, you can litter train your 3-year-old rabbit.