Actually this is a closely related question.I have 13 Rhode island reds about 8 months old.Three of them have smaller lighter colored combs than the rest and I'm not getting quite as many eggs as I was expecting.At this age will they still develop?I haven't figured out how to tell who's laying what.They all are eating well and appear healthy.
Jo
I have noticed this with our chickens as well. Suddenly our one pullet had a large bright red comb and proceeded to lay an egg a day for the last 12 days. Today it is more pale and today she failed to lay.