hi guys. i have a girl who just started laying a couple weeks ago. she's a Silver Cuckoo Marans and i LOVE her! her egg color is strange though. after she takes a day or 2 off from laying, her next egg has a whitish coating over it. it really looks like a tinted egg. but the deep brown IS underneath. the next day if she lays an egg it's a medium pretty brown. what is that coating?? i know ALL eggs have a coating over it that u don't wanna wash off.....i know that coating is even on her pretty brown eggs. but why does her 1st egg after a day off have a visable whitish coating?