They all do it sometimes, my baby silkies, my juvenile red sex links, and all my adults... Just randomly I'll look out in the back yard and some will be laying down but still eating. Are they just being lazy or could they have some sort of deficiency in their diet? The babies are in moveable 8'x8 pens so they have fresh grass to eat along with their non-medicated chick food, and the adults get let out to free range every day, and get fed layer pellets and corn also. And everyone gets black sunflower seeds. Also how do I know if they are eating the sunflower seeds? The black hulls are everywhere, but for some reason I thought they would eat the whole thing, Or do they just eat the seed inside, which would explain why the hulls are still all over the place? The cardinals certainly wouldn't complain if the chickens never ate another seed again, every evening there are at least 6 cardinals in their pen... I love cardinals too though so I don't chase them off haha!