My silkie had 5 eggs she was sitting on. She hurt her leg so i brought her in to watch her and make sure she was able to return to her nest. Today she only has 4 eggs. Is it possible that she ate one. I cant find in anywhere and it is impossible for it to have fallen out of cage. I have been taking her out daily to make her walk so her leg is exercised so i am wondering if she is upset and eating her egg to keep it from what she may presume as predators.