I just started raising backyard chickens about 6 months ago, so i'm still kinda new at this, but i have a flock of Red Stars, Rhode Island Reds, and White Pearl Leghorns. I found a egg in one of the nest boxes yesterday that was brown and very small. So it had to be either one of my Red Stars or a Rhode Island Red. There only 2 months old, are chickens supposed to start laying that early?? and why is the egg so small?