friends-- i'm new here and need some advice if you'd be so kind... we have 5 chickens. SL Wyandotte, EE, Buff Orpington and two Black Austrolorp hens just about to start laying. one of them has already started and has laid two so far. (awesome!) this morning i went out to the coop to check on them and sadly-- my beloved buff orpington was dead. no signs of any bleeding or attack or anything like that. no signs of entry into the coop (which is all fenced and trenched with drainage rock) the only thing i can think of is a few weeks ago i mistakenly switched them to layer feed 4 weeks early. I just misunderstood their age (new at this) and started them on the layer feed too soon. yesterday i read on here about how it can kill them if you start too early with the layer feed b/c of the calcium. i'm so sad! she was my favorite. what a great chicken the buff orp is! any thoughts on this? also-- i live in TN-- is it too late to get some new chicks and raise them up to add to the flock before winter? we're wanting more buff orpingtons-- just order from mcmurray or something? thanks so much!