I have two seperate coops and runs. Five month old leghorns in one; and two month old australorps and orpingtons in the other. I supply them with the proper ration, clean water, and grit 24/7. With grass in short supply now, I have wondering if some good leafy alfalfa hay would be good or maybe lead to problems with crop impaction. I hang a head of cabbage in their runs about once a week; which they devour in a days time. I would like to have something else to keep them "busy". What do you think?