How old is a chicken when it moults? I have 10 red sex link hens that are approximately 9 or 10 months old and have stopped laying. I have been told that it could be due to moulting. Well, it is my understanding that when any type of bird moults it loses feathers so I don't believe that moulting is the problem. Tropical storm Fay move through my area twice in two days. It wasn't tremendously bad but the weather was a bit rough. Could the weather be the reason they have stopped laying? The only problem that I have with that is the fact that they have not laid in over 2 weeks now. Help!