Hello. We have seven hens who hatched in November 2008 and three hens who hatched January 2009. In August we were beginning to get very little eggs and now we don't get any. Are they molting? If so how often do they molt? How long does it take for them to molt? Do roosters molt too? Why do chickens need to molt? We have also found lots of feathers inside and outside the coop. Also, one of our hens has a bald patch on her back. Do you think this is caused by roosters or is it molting? Thank you for your help for our many questions!