I forgot to address your comment which I wanted to make about your bunnies living outside.
Outside bunnies need a different kind of care. Their cage needs to be up off the group so a weasel or other predator (dogs) can't get at them. They need to be protected from the heat of summer and the cold of winter. Water is especially important ALL the time. It gets frozen in winter and it evaporates in sumemr (or the buns knock the bowl over and spill it out). They need to be fed every day, twice a day, absolutely no exceptions.
Their cage should be cleaned every 3 days. You need to remember these bunnies are depending on you to take care of them. When they are caged they cannot take care of themselves.
Neither should domestic bunnies ever been turned loose in the wild to fend for themselves. Since they are used to being taken care of they do not have the survivor skills to live on their own. Sooner or later a predator or car will get them.

it's a very big decision you are trying to make and I wish you all the very best of luck. Bunnies are wonderful companions and you'll enjoy them a lot.