This may have been covered by previous posts they all seem to feature a change in food. I have 3 hens and a male, and all of my hens have suddenly stopped laying. I haven't changed their food (they have a mixture of quail mix and layers pellets), but they now haven't laid for almost a week. One also appears to have lost quite a lot of feathers on her back near the base of her tail as well (Kevin, my man-quail has a habit of being a bit enthusiastic, but I don't think it's just caused by him!). I hatched them myself last year and they are my first quail, so I'm hoping someone with more experience could help as I'm really worried (particularly about the one with feather loss). I moved them recently, but it was a few days before they stopped, and they get moved every week so I hope it's not caused them any stress. I had thought it could have been our mower, but they haven't had a problem with it before, and I try to keep away from them when using it by strategic moving.