Hi there: just joined Backyard in the hopes of help. My flock consist of 1 year old Rhodie mix and 22 week old Rhodie pullets. Extremely diligent with their care and cleanliness, however, infested with Mites/Lice; loss of a great amount of back feathers; gurgling/respitory, lethargic and now as of today, I have a pullet who is flopped over on her side twisting her neck and can't walk as if a paralysis has occured. I have treated them all with teramycin in the water and dusted each and everyone of them with Sevin. Some have improved but it is pretty bad. Any help?????????????? I am totally frustrated, exhausted and discouraged.