Nature's Window Nyjer (Thistle) Bird Seed Size:18 Lb. One PU (Papain Unit) is

One PU (Papain Unit) is defined as that quantity of enzyme that liberates the equivalent of 1μg of tyrosine per hour under the conditions of the assay

sunflower oil (preserved with mixed tocopherols)

Pioneer Pet Vortex Fountain

Vitamins & Minerals

dried yeast

Nature's Window Nyjer (Thistle) Bird Seed Size:18 Lb. One PU (Papain Unit) isNatures Window Nyjer is perfect on its own or in your custom wild bird food blends. Our high quality Nyjer is a favorite of Goldfinches, House Finches, Purple Finches, Chickadees, Redpolls and Siskins. Favorite of Chickadees, Goldfinches, House Finches, Purple Finches, Redpolls and Siskins. Promotes feather regeneration No ground sprouts Deters squirrels High energy source Perfect for your own mixing Ingredients Guizotia abyssinica niger seed