For the past month my hens have pretty much stopped laying (1 egg every third day; 9 hens). Also, I have noticed that a couple hens are missing their tail feathers. I first noticed one missing her tail feather, then a couple days later another, a couple days later another. It's almost seems like some strange kind of fashion trend - like a chicken version of a "tramp stamp." I am concerned that they may be done laying - the hens are 2 years and four months old. If that is the case, then I have a problem: what to do next... My question: is there a connection between the fashion trend and the lack of eggs?