My six Girls are used to free ranging in our yard at least a couple of hours a day. They have a wide variety of foliage to pick from- various flowers and herbs, bushes and plenty of tall grass and weeds and of course the lawn. I want to supplement thier food in the Winter months so they'll still get greens of some sort. I'm planning to buy a few bales of hay, but am unsure what is better. Alfalfa is a little more expensive, so you would think it would be best, but mixed grass hay would seem to give them more variety. Any input would be appreciated! Thanks!