Hello, new to raising chicken and first winter with them. My one chicken comb, eyes and beak look pale compared to the others. She has a pale pink comb and beak almost looks white at the tip. She is up running with the rest, eating, drinking, may be molting. She acts normal in all other ways but just very pale. My coop is within a green house so protected from the weather. Any idea why she would be so pale looking......