What all kinds of hay & straw are there & what are the uses of it in regards to chickens? I know there's alfalfa hay. I know there's wheat straw. What all uses are it and other kinds of hay & straw for chickens? I know they would scratch in it regardless, but do they eat it? What kinds are used for bedding? Is there some to avoid & why? Where can I get all of these? The local feed & seed? TSC? Local farmer?