I was under the impression that chickens would eat almost anything for treats, but my little backyard flock is being very picky. There are 6 birds, one is just over 2 months old, the other 5 are almost 6 weeks old. I have put spinach, cabbage, salad greens, potatoes, green beans, corn, some leftover pancakes, and even a little bit of pasta into their run, and yet they don't eat any of it. They have been eating their Chick Starter/Grower feed no problem every day. Am I missing something, or are they just really picky?