I have six 40 week old pullets that appear to be molting. This is my first time raising chickens. I didn't think pullets this young would go thru a molt but three have lost their tail feathers and some of their downy butt fluff. I’m more concerned with my SLW who is now losing feathers around her neck and wings as well. They all are eating well and have plenty of water available. My fear is the cold winter weather is closing in fast. Do I need to do anything special to keep them warm? She looks so scraggly. I’ve checked for bugs and lice and found none. Any direction will be appreciated. Thanks.