The top two hens in this photo are the ones im speaking about this is when they were normal.
And this is a what they look like now (this is not them just a photo i found that looks like how they are now.
If they have recently molted or are not laying at present, they may typically have a pale comb. Decreased light in wintertime can cause a cease in laying. Adding a light on a timer in the early morning can help to give them 12 hours of daylight, which is all that is required for laying. It can take a couple of weeks to help. Also check their skin all over for signs of mites which can cause anemia. Read this link: