We throw some out for the doves, and I give them to my girls once in a while. And yes, I have put sunflower seeds into my fodder. Chickens love them. We have wild sunflowers growing where they will be free ranging..we'll see if the plants get started even a fourth of the way this year. I love growing the giants. When the huge flower starts to drop, and the seeds are ripe, I break the head in half and put it out for the chickens. Lasts a while...weeks. These are very large and beautiful sunflowers I grow.I'm so pleased you mentioned sunflower seeds, I've just added the black seeds to my mixed corn fermentation. I hope I did right ?