Mine get lots of greens, one word of caution though. I have read that spinach can block the absorption of calcium. I wouldn't have thought much of it, but I think I may have had it happen in my own flock. I've never had trouble with soft-shelled eggs or anything, but a couple of months ago I started getting a few. I started reading threads about soft-shells and came across the spinach thing. They had been getting a lot of greens at the time, especially spinach. I cut back on the spinach and things seemed to firm up, so to speak.
Also, in humans at least, vitamin K (abundant in leafy greens) can contribute to blood clotting. Imagine getting a call from your doctor indicating that you should lay off the salad and quit taking vitamins. "Hey doc, can you call my wife and tell her my diet should include more beer and wings?"
Also, in humans at least, vitamin K (abundant in leafy greens) can contribute to blood clotting. Imagine getting a call from your doctor indicating that you should lay off the salad and quit taking vitamins. "Hey doc, can you call my wife and tell her my diet should include more beer and wings?"