I feed my birds everything except citrus items and hard to digest items. There is nothing wrong with feeding your birds extra chicken or even turkey bones...It's great protein that would go to waste...I swear my crew knows when T-day is! Whatever isn't eaten by the end of the day, then gets tossed-bones and all to prevent an open invitation to predators. I cook eggs for them a lot during Winter. Actually, once a week Ill make a couple of pounds of rice..pureed leftover meats..leftover veggies and tons of cooked duck eggs..I heat some up in the mornings during Winter besides feeding them their normal feed..They are happy and healthy and giving me more eggs through our Tundra weather than all Summer!