Our "girls" will eat absolutely anything we bring out as food scraps or unused veggie parts cut up for them, but a super favorite is tomatoes...which is why we have fencing around our garden. When they're free ranging, one red likes to follow me around to see if I'll uncover any nifty worms or bugs. We toss them some grain or soft apples for fun in their chicken yard, and always some weeds. The only thing they won't eat is slugs, not that I blame them! Too slimy! And they're too smart to eat potato bugs, the li'l stinkers!