Over the years I've noticed how the color, size and shape of eggs vary. Some are almost round while others are narrow with pointed ends. Some seem to have shells laid in sections, others are smooth. It may vary from bird to bird, sometimes day to day. Some colors and their intensity are breed related while some variations exist within a single breed. Of course too, you can get tiny "fart" eggs and huge double yolkers. In all, it keeps life interesting.