Many people raise chickens in their backyard as a hobby or to enjoy a steady supply of fresh eggs. It's well known that chickens will eat almost anything fresh, including vegetable trimmings and even discarded eggshells. However, you should avoid feeding them avocado skins and pits, because they contain a toxin called persin, which can cause heart failure and other serious health issues. Onions and garlic won't usually kill chickens, but they contain compounds that can lead to anemia. Finally, rhubarb leaves are extremely toxic and can be fatal; they are an absolute must-avoid.
ANDREWS MCMEEL SYNDICATION