“Wild Bird Seed” and other pre-packaged mixes using that name can have any number of seeds, in any ratio — it’s an unregulated market.
Inexpensive “Wild Bird Seed” mixes and other pre-packaged mixes often contain too few black oil sunflower seeds. They may contain inexpensive, but less-favored, ingredients like milo, wheat, flax, or buckwheat. The result is messy and wasteful. If you’re looking for a good birdseed mix designed for Portland area birds, consider our Northwest Mix which contains 45% black oil sunflower seed, 45% millet and 10% cracked corn.