Kai: Permaculture recycles everything, just the way nature intended! With all of the laying birds in the family, it’s important for them to get their calcium, and although there are many products one can buy for this, we like to reuse our chickens and quails own eggshells. We simply toast the empty shells in the oven and blenderize to a powder which is added to the bird’s food. I even use it for my parakeets.