Striped Sunflower

Striped is great for the bigger birds like blue jays, grosbeaks, cardinals as they have the beak power to bust these open.

Use a Squirrel Buster Nut feeder with Striped to force the blue jays and Grackles to feed politely (one seed at a time!) which will then push Starlings elsewhere (they can't crack them open) and Squirrels to look elsewhere for food.