Whether or not domestic rabbits can eat mushrooms depends on what you feed them. Mushrooms are generally not poisonous, but they may be dangerous for rabbits if you don’t provide them with an alternative. To avoid this situation, make sure to give your rabbit the basics for a balanced diet, including green vegetables and fresh herbs. You should also take steps to prevent your rabbit from ingesting mushrooms in your yard. First, put your rabbit in a ‘run’ when he is in an area that contains mushrooms. In addition, make sure to check for mushrooms in your yard regularly. You can also cut your lawn to make it more accessible to your rabbit.