I have thought about it, but I'm not even sure how that would work in my yard. I can't dig a pond, and no part of the yard is level...am not urban, but rabbits are usually classified as pets not live stock, i would like to get into them but still have a hard time killing livestock. (yet no issue with wild game) they seem to provide a lot of meat in a small space and minimum effort.
also have you looked into fish? like small scale aquaculture can provide a ton of fish to eat (depending on species like tilapia) where you can breed and raise them to a plate size in a year.