I usually have brown eggs---every once in awhile I find an egg that is faded tan. It looks like it is sun faded. The first time I found 2 out in the run and thought they WERE sun faded. That was when we had over 100 degree heat. Now I find them in the coop every once in awhile and they still look sun faded. Tops and bottoms are different colors of tan and brown. At first I thought they were stale eggs so I have not cracked any to see the insides. Any info would be appreciated.