It depends what you eat. If you eat fish sticks and frozen pizza ...then I agree, but if you are eating healthy - then your compost bin is excellent variety of vitamins and nutrients for them. Fruits, veggies, berries, cooked meat scraps, soggy cereals, milk, brown rice, ends of your celery/ lettuce bottoms, dinner scraps. YUM!!! They will go nuts for it. Just keep it to 10-15% of their food intake. And of course, if you are not letting them free range, I'd recommend handfuls fo grass and dandelions each day. I guess my birds eat a large handful of weeds and grasses each, each day. I leave a mound for my roosters who do not get to free range( well, only on Mondays) and its always gone in an hour or less.