Depending on your space available, you may choose a medium sized cage for indoors and a large play pen that can be moved to the yard or family room for the bunny to get some exercise. If you plan to keep the bunny outside you will want a larger cage to accommodate a box so they can get in out of the weather if they choose. Bird cages seldom have a wire floor which means the rabbit will be sitting in his excrement. Chicken wire mesh is too large for flooring and isn't strong enough to support the weight of most rabbits. Either way is fine with these precautions.
Rabbits are wonderful house pets that are readily litter box trained.
Their cage should be protected from drafts. Don't place the cage on the floor under a window or air conditioning vent. Remember that they wear a fur coat all year and a comfortable temperature for people may be too warm for a rabbit. They can be destructive if allow to roam unsupervised. They should have a cage and should only be let out to play when someone can keep an eye on them.