Aviculture: The raising, keeping, and care of birds. Our comprehensive bird diets have been the backbone of successful bird-keeping since 1937. Cage birds are completely in the charge of bird-keepers and their health and well-being is mirrored exactly in what they are fed. If they are to lead healthy lives, it is a duty to give them the best. And the best is Haith’s. All seeds supplied by Haith’s are SUPERCLEAN™ as dust is harmful to a bird’s respiratory system.