This magical hanging bird bath fills itself with water when it rains. The collected drops can then be used by the wild birds in your garden or on your balcony as they can simply fly to it when they become thirsty. The bird bath for the wall can also be filled on hot days - either with food or with water. The cast iron wall bracket is frost proof, rustproof and can be safely hung on the wall all year round. Make sure that the water is changed regularly and that you rinse the bowl once a week with hot water. Please do not use detergent.