Shouldn't do chicken carcass as the bones will have become brittle through the cooking process and then tend to splinter.....
But agree they like a wide range but follow the guidelines regards what not to feed - basically same as a dog so no chocolate or as my daughter pointed out no grapes
They like whole uncooked eggs , peanut butter or jam sandwiches, cheese but mainly i also give them dog biscuits and dog food.... I see it as a top up rather than feeding. I have around 5 that turn up through the course of the night.