Every night when i lock up my chickens i usually do a small inspection to see how my chickens are doing. One night i looked at one of my bard rocks and she had some white stuff on here face. She didn't look like there was anything wrong with her so i though maybe she went fluffing in some really white dirt or something lol. Well every day after that there was a little more white until here face was completely white. Know another chicken is starting to get a white face. They don't look sick or anything. They haven't lost any weight they just went white. Does anyone know what is up?