To make a long story out of my previous short story: the first winter, I had 5 pullets. 3 EE, and 1 BLS, 1 RIR from home hatch. Only one bird produced through the entire winter: one EE faithfully gave me 3 eggs/week. The rest went on holiday. The RIR blew her feathers off in the coldest part of the winter. She looked like she belonged in the poultry case at my local Hannaford. After that winter, I decided not to keep free loaders the following winter. Provided light, starting in late fall, ramping up gradually. Had eggs all winter. I think the flock was 16 female, 1 cockrel. Same RIR blew her cover mid winter. So, no change at least for her in molt pattern with/without light. Last winter, 24 layers. Light provided in new coop. Decent production. I intend to provide light again this year. However, I depart from convention in this as I do with so many other aspects of poultry keeping: I let them experience the shortening day length till they almost all stop laying. Then, in early November, I start ramping up the light. So, they get a bit of a break, and I still get eggs. I use 7W CFL on a timer. Seems to be enough to keep them laying. An other departure from convention: I provide my light in split sessions. In order to give them the 14 hours, I put light on timer: 6:30 AM - 8:30 AM and 3:30 PM to 8:30 PM. This increases the "brightness factor a bit during the gloomy winter days. And if it stays gloomy for a longer period, I can always leave their light on all day. I know "they say" that you should provide all of the light in the morning, allowing a natural twilight period at the end of the day, so the birds don't get caught stumbling in the dark after lights out. Perhaps I have smart birds. But, they have always managed to be on the perch before lights out. And, if I followed the "they say" crowd, I'd have a rooster crowing at 2:30 AM. No thank you. I will not get up to feed at that hour. I will not open the pop door at that hour. Nor would THAT be prudent! And I think my neighbors like my lighting schedule better.
I agree with you on that aspect Aart. I think that a lot of the locals are apt to sell "heritage" birds simply because they have a roo and a hen of a particular breed regardless of where those birds came from. Not to say that hatchery stock can't be improved and returned to heritage quality. Because it's been documented with Delawares, that within 3 generations, hatchery stock can make great strides toward their former heritage SOP if handled with a breeder who KNOWS WHAT HE'S DOING.