I've never had to deal with it. So I don't know for sure I can only go by what I read and the symptoms aren't drainage.
I believe that your chickie may have a bacterial infection of the respiratory tract. Hopefully it is bacterial because it can be treated with antibiotics. Viral cases cannot...
Possibilities:
Newcastle Disease-
Clinical signs: There are three forms of Newcastle disease -- mildly pathogenic (lentogenic), moderately pathogenic (mesogenic) and highly pathogenic (velogenic). Newcastle disease is characterized by a sudden onset of clinical signs which include hoarse chirps...