We bought two buff rocks and two barred rocks as three-day old chicks on March 6, 2011. The barred rocks started laying one a day (maybe) back in November, but the buff rocks haven't layed at all yet. I should mention that this is the first time we've owned chickens. Is this normal? We noticed that the barred rocks started laying almost immediately after we installed a window in the coop, so obviously the light helped. It just seems weird to me that the barreds lay but the buffs don't. We'd really like to buy more chicks soon but we want to make sure that the coop doesn't need any major changes before we add to the brood. The coop itself is a converted dog house. Also, we live in southwest Montana. It's been an extremely mild winter here. Any suggestions? Thanks so much in advance!