I have four hens, all approximately 6 months old: Lucy and Doris (Easter Eggers), Jane (RI Red), and Lana (Silver Wyandotte). Lucy and Doris have been laying reliably, each one giving us about 4 eggs a week in the couple months that we've had them. Jane and Lana only gave us their first eggs in the last week - two from Jane and one from Lana. While we're thrilled to see Jane and Lana earning their keep finally, we're curious about Doris and Lucy. They've all but stopped laying! We get maybe an egg or two a week from each one now, if that. They used to squat whenever we reached for them, but they don't anymore (Jane, on the other hand, just started doing it). They get an excellent diet of organic, corn-free and soy-free feed, rounded out by grass and bugs they find and most of our kitchen scraps. They seem to be in excellent health. They just aren't laying. We have a light on a timer in their coop and it's on from 5:30-7:30 every morning. That was supposed to keep them laying through the winter and, while it's chilled off a bit, it hasn't been THAT cold in Portland (highs in the upper 60's). I can't figure out what's going on. Any ideas? Thanks in advance!