Your little bird uses its nest as a place to breed & to get away from it all. It´s important to give your bird this space especially if it is part of a large group. & without a nest your bird cannot breed The base of this box has a slight hollow similar to the hollow of a nest your bird would make in the wild. This can be pulled out for easy cleaning. There are slits in the nesting hollow to make sure there is enough ventilation & the roof can also be opened so that you can clean the box from the top. The nesting box comes with 2 plastic hooks & is simple to attach to the cage. It´s a good idea to fix a perch in front of the nesting box to give your bird easy access.