New to chickens this year and my chicks are almost 7 wks old. We have 6 chicks, 3 different breeds. 1 of our golden comets has these fluffy feathers that look kind of unkempt next to the sleek shiny feathers of the rest of them. She still eats fine, moves around normally, and doesn't seem sick in any other way. Is there something I should be worried about? I tried to add a pic, but I'm not sure if it is in or not.