I have recently bought three Silver Phoenix hens. I noticed they have nasal discharge but act like normal chickens. They are sneezing and coughing often but one of the my hens is in worse shape. She eats but her craw rarely seems full and her feathers are all ruffled looking. A rooster cane with them and he has a bit of a cough and gargly sounded breathing. My one hen who has the ruffled feathers has wheezing and gargled breathing. She has hard lumps on her and is super skinny. What is wrong with them!?