phenominal at reducing dust,hull, pin feather, and even smell. My two cockatiels are incrediby messy and my grandson has allergies-great results with these. Worth the price and they last longer than advertised
Cuts down on bird mess... by karenb05/19/2013
Once I learned to handle the product on the edges, it worked like a charm. I have a really big cage so it takes an entire package to just about cover the bottom. You can't eliminate a Congo Grey's mess completely, but this product keeps the powder and those downy white feathers from escaping if they hit the cage liner before flying out of his cage.