There is no question that parasites will affect the health and performance of birds. This all natural enzyme prodcut cleans away mites, red mites, and the feather louse. Pigeon bird bath also cleans away viral pathogens and is extremely effective on the life cycle of parasite eggs, larvae and adult parasites. Safe for all birds and farm animals and safe if the birds drink the water. 2 cap fulls in 4 gallons of bath water.