This is our first year with chickens. We got them back in early April and they have been living out side since around June. 4 have been laying regularly (the first started laying in early August), but two are still not laying. The two not laying were hatched the first week of April, they are Barnevelders. They both have red wattles and combs and squat. The other four are about 1 - 2 weeks older. We are using supplemental lighting right now, and it seems to be working since the 4 are still laying on a regular basis. Is it possible that these two born that first week of April are going to wait until next spring even though they are just a little bit younger? Thanks!