Beware that essential oils can be hard on a birds respiratory system.I use this general cleaning recipe for the coop, roosts, and nest boxes:
Using a funnel, in a 32 oz. spray bottle, mix:
2 cups white vinegar
2 cups distilled water
20 drops lemon essential oil
20 drops peppermint essential oil
10 drops thyme or tea tree oil
Shake well and clean away!