They could have a flock mate that is helping them lose a few too. If you notice any blood, I would suspect a dominate hen picking their feathers. Best of luck with your ladiesPossible, especially since you can clearly see new feathers coming in. As I understand it they only regrow feathers during a molt? Also, since the only two who have this are Rhode Islands, perhaps it's something with their breed which caused them to do a light molt?
