After reading numerous posts here on the BYC about the benefits of black oil sunflower seeds, and how everyone's birds loved them as treats, I went out and paid 18.00 for a 50 pound bag thinking my pet goose, jersey giants, dutch bantams, quail, and chukars would be quite please with me, well lemme say, not one sunflower seed was eaten. Am i supposed to do anything special to these seeds before i give them to my birds?