I’m hoping for some suggestions on what might be wrong with my chickens. I'm a first time chicken keepers and have 3 hybrid chickens, 2years old, who are free range. For the first 9 months they were prolific layers but a year ago their eggs stopped except very occasional soft shelled. Other observations are they haven’t properly moulted although are quite bare on their underside, often have runny poos which cake their feathers and have very sharp bony sternums. But they seem quite happy! They are on a pellet feed, have grit, free range, lots of sunshine, have a cider vinegar in their water. I’ve sent poo samples to establish if they have worms which came back negative. I’m loath to pay for 3 otherwise healthy chickens to go to the vets.
Does any one have any ideas what’s up with them?!