To keep your pet a comfortable and hygienic place, food scraps and droppings should be removed from the cage regularly. Depending on how many birds you keep in it, the cage should be cleaned 1-2 times a week. This is a rough recommendation, which should be adjusted according to the amount of dirt your own bird gets, in order to prevent odour build-up and bird diseases. Some of the cages listed have corresponding equipment extras that make cleaning the cage easier.