I have 7 red sex links (all my girls! Hopefully), they're almost 5 months now. I feed them daily. Fresh water daily. Bedding changed every 2 weeks. Treats of some sort (corn, worms, seeds, fresh grass clippings every other day). Today I noticed a few of my chickens combs were faded. From red to a pink. A farmer down the road said that's a sign they're getting ready to lay? Something about pulling pigment for their yolks? Any truth in that? Just don't want a bunch of sick chickens.