I have seen rabbit hutches wit a pull out drawer below that they contain the pellets and raise red wigglers for worm castings.Rabbits are very heat sensitive so you do not want them out in the glaring sun. My ag agent/bunny 4 H leader puts frozen 2 litres of water in the pen for them to snuggle up to when the temps raise.
good luck

My husband made a chicken truck to pull around the yard but it has no protection for the winter i don't know if you all no what an old lifestock rack it they used to put it on the back of pickup trucks to haul lifestock anyway thats what he made the chicken truck out of so how do we make a chicken coop for our 40 chickens?? the chicken truck works great tho .... is there any way to post pics? if so i could show you how he made it but to tell you is hard!!