I have 5 hens (buff orpingtons, barred rocks, and RIR) that are 20 weeks old and not laying yet. they were on chick mash for the first 8 weeks and then i moved them on to layer pellets at the recommendation of the feed store i use. now i am reading that they should be on grower pellets until they lay, and i am wondering what actions i should take? Put them on grower pellets until they lay, or just leave them on layer pellets, or something else? They free range about half the time. Also, any advice on when they may lay? i live in New England, where the days are now less then 12 hours. I could put in a light to promote laying, but would prefer not to, as i have read that BOs, BRs, and RIRs tend to lay through the winter without lights (although not at a regular rate). Have any of you seen this from your experience? All advice and insights welcome and thanks!