Here's my dilemma.... I have 13 18 month old girls (BO's, RIR, EE's, BR & Calf White). I feed them Blue Seal layer feed and they free range. I give them an occasional treat (recently added BOSS to their feed). For the last few months their egg production has declined. Most days I am getting 3-6 eggs (no green eggs for several days), I was getting 8-10 a day. They act healthy, one maybe moulting, but all others look good. I am just wondering if something is wrong, or is this normal after 1 year of laying? Days are getting shorter, so I added more light yesterday on a timer. Any thoughts? Just want to make sure they are healthly...seems too soon for them to be running out of gas.