Whistler Percher Treats Have Been Designed For Multiple Birds To Perch, Play And Snack. Formulated With Nutritious And Tasty Fresh Fruits, Nuts And Veggies; Whistler Percher Treats Are Sure To Excite The Fussiest Feathered Friend… And Like All Whistler Products, This Makes For A Happy And Healthy Pet Aviary Bird Or Wild Bird.