I have 2 black australorps, 2 barred rocks, and 2 ameraucanas that have finished molting months ago, but will not lay. Our golden buffs, rhode island red, and wyandotte bantam are laying almost every day, but the others havn't laid an egg since maybe late september, early october. All chickens have a thick fluffy coat of brand new feathers, so I can't understand why they won't lay. I'm wondering if it is because they are slightly overweight? We started giving our chickens a mix of oatmeal, garlic, and layer feed on occasion, and they get scratch and sunflower seeds almost every day. One of the black australorps is so plump, if we were planning on ever eating our girls, she would feed us for days!