Back in June I bought some ten week old buff orpingtons. All our chickens went through a hard molt in late summer/early fall and then the days shortened. We never got eggs out of them. It's now spring and still nothing. The people we bought them from have been getting eggs from their batch all winter. We had one of them start laying a month ago and now it's stopped again. I'm going to worm them, dust them and add oyster shell to their diet (they eat layer feed). What else can we do? We're on well water if it matters.