No idea what is going on. We live in southern Pa so it is cold here. They are all healthy, good weight, and they do sit in the nesting boxes, but none are broody. We have 4, 1 1/2 year olds that are laying, and we have tried keeping their eggs in longer, and there are golfballs in the most popular nesting boxes and we have tried the 12hr on, 12hr off lighting. The ones not laying are 2 Salmon Faverolles, a RIR, a NHR, an Australorp, a Black Jersey Giant, an EE, Buff Orpington, Silver Laced Wyandotte, Speckled Sussex, a Welsummer, and a Blue Andalusian.