My chickens are 1 year old and have been laying since oct/dec of last year. I noticed that some of the ones that used to lay brown eggs are laying tan/light tan eggs now. Is it normal for the color of the egg to change that much. I understand different shades of brown from egg to egg. But what once was a brown egg is not even close to brown anymore. Anyone know what the reason could be. I have 17 hens and they all eat the same thing. I've only noticed it in the eggs of a few of them.