Safflower birdseed is a lifesaver for those of you having trouble with squirrels. Most squirrels and blackbirds don"t like it, while cardinals, nuthatches and chickadees can not resist it. So if you are tired of feeding more squirrels than birds, safflower is definitely for you. Safflower is not eaten by most squirrels or blackbirds. This product weighs 10-pound.