Wild Bird > Single Seed > Goldfinch Thistle Seed Goldfinch Thistle Seed High-oil content seed for your goldfinches. Also attracts buntings, doves, purple finches, house finches, juncos, redpolls, and siskins. For use in a thistle sock or finch tube feeder. Weight 5 lbs Ingredients "Guizotia abyssinica"/niger