I have a 8 month old SLW that appeared to have a respitory infection. She was lethargic, and exhibited bobbing as she tried to breath. I pulled her from the flock, started her on .5 cc penicillin G and Poultry Nutri-Drench. On the second day she was noticeably better and had started eating a drinking on her on. Now she is driving us nuts with her constant plantive squawks. Could she be missing the other birds?