This is my first year with chickens and I'm not sure what their full cycle is yet. I've been noticing that they seem to be losing feathers around their backside. I was a little concerned that one of them had started pecking the others but now I'm wondering if they are molting. There are only 3 of them and I know they have enough space. I have my silkie inside because she just hatched out a baby chick so I didn't want her out in the cold and I've been noticing that she's lost a few feathers as well. They are all around the same age. So what do you think?