I have been thinking about growing food for my chickens next year. Feed is so expensive (About 15-18 bucks a bag) and I go through over a bag a week. I would like to grow some plants next year to at least help in feeding them so I go through less feed. Does anyone have any recommendations on crops to grow for chickens/ducks/pigeons? I do want them to loose on any nutrients. Does anyone currently "Self-Sustain" their flock by growing crops?