Hi there, I think my 9 month old RIR's are molting. Is that normal this time of year? They seem to be losing a lot of neck and tail feathers. They have also stopped laying. With the weather getting colder, do I need to worry about their temperature regulation? Our other 5 chickens are looking pretty normal. Our Golden Comet and 2 leghorns are still laying very well. Our Aracaunas quit laying the same time as the RIR's. They are all fed laying crumble. Thank you for any advice.