So, we've only had chickens for about a 1.5 years & it's all come pretty easy to us... Until now! One of my Rhode Island Reds layed an egg that has a bright "red" section on the top & the top only. It's quite rough in comparison to the rest of the surface of the egg. Any ideas as to why this happened or what we can do to make them go back to "normal"? Tia!