We recommend that you clean your Birdball after each breeding season, when you are sure it is empty, between September and the end of January.
Wearing rubber gloves (as birds nests can harbor parasites) remove the old nesting materials - a piece of wire coat hanger works well here.
Unhatched eggs can only legally be removed between 31st August and 31st January and these must be disposed of along with the nesting material.
Once empty, rinse the inside thoroughly with hot water, never use bleach, detergent or any other harsh cleaning products.
Leave the birdhouse to dry thoroughly before either rehanging if you'd like to encourage roosting or putting away safely until the following year.