have any of you ever had a buff silkie without a puff on its head and a red comb? our buff silkie came to us as a one day old chick. she was supposed to be a hen but we think she may be a roo. it got pretty cold last night (about 30 degrees), and today we noticed a few black specks on her comb. we're wondering if it could be frostbite, or if her comb is supposed to turn black? she's about 4 mos. old. thank you!