tortoise
Wild Hare
I fed my chickens meat scraps. Especially neck roasts and similar cuts where you can't get all the meat off the bones. My chickens would pick them clean!
Eggshells too. Bake or microwave to kill pathogens and to dry them, then crush or grind so they don't look like eggshells (to avoid teaching chickens to eat their eggs).Don't forget eggs. Extra eggs can be scrambled or boiled and chopped and used to supplement their regular feed.