I am a proud new chicken mama to my 11 black australorp girls. I have noticed that three of my hens have like white stuff on their heads. I got them when they were 9 weeks old back in April of 2012, are they molting ?? I'm not sure because i read a lot about molting and a lot of people say that they don't start to molt till they are a year old. Is this true ?? It looks as if they ate some yogurt and it got all over them. During the summer i give them yogurt and i have watched them do that lol. But they have not had yogurt in a while, they all seem to act normal and healthy but i really just wanted to know if its anything to be worried about. I will post a picture of one of them and hopefully someone can determine what it is. Thank You to whoever just took the time to read all of that lol.