Minecraft wiki entry for Building_a_metropolis, associated text: Animal Shelter This is for pet owners (example: tame cats and dogs), that want to give their pet away. Maybe their wolf is causing to much trouble and attacking people accidentally. This is where they can take their pets to give away. Have cages and maybe a barnyard for the farm animals like horses. These animals are given shelter, food, and water until someone comes to get a new pet. You can sell the animals for prices or just give them away for free to whoever wants them. There are two options for how to personalize your shelter: you can make it a kill-free or a kill shelter. It's your decision, but if you make it a kill shelter then you should have a certain timeline posted on a sign at the front of the building telling visitors how long you keep animals before killing them. You can do this manually, have a room devoted to killing, or possibly automate it with red stone, levers, Dispensers, and tipped arrows. If it's a no-kill animal shelter then keep the animals until someone gets them. If you don't feel like killing anything, it would be advised to expand the shelter and add more cages, as the animals will pile up more if you're not killing them and regaining space.