This is disturbing.
I'm glad you are not breeding anymore, but now that you have bred them, you have a moral responsibility to provide adequate care to your birds to avoid suffering. They need to go to a vet. You have likely already caused long term damage by not doing it sooner. The least you can do to avoid any further progression or suffering is get them to a vet, or at least a bird rescue that can take over. If you cannot provide adequate medical, nutritional and environmental care to your animals, you should relinquish them to a bird rescue and own no more until you are able to do so.