We have two bard rock and two Sussex. All four a two years old this month. About 3 months ago they just stopped laying completely. Started by occasional thin eggs, then broken eggs because the shells got too thin, and for 2 months not a single egg! They have a nice big coop, a enclosed run...
Our bard rock hen lost all the feathers around her vent area... and area about 3 by 3 inches, totally bare. We have tried dusting her with powder from the local grange but the feathers do not want to grow back... it has been about a month now that she dtill has a bare bottom. Any idea on what...