A good cleaning solution can be made form one part liquid chlorine household bleach and nine parts tepid water. Immerse the feeder completely for 2-3 minutes and allow to air dry. Discard food that smells musty, is wet or has mold or fungus growing on it. Disinfect any containers that have been used for holding contaminated food. Store your bird food in tight containers.
Mice can carry diseases that can be passed on to the birds.