COMMON CONDITIONS OF MACAWS
Proventricular dilatation syndrome (chronic and progressive weight loss and death)
Chlamydiosis (Psittacosis)
Gastrointestinal parasites capillaria and ascarids
Oral and cloacal papillomatosis .
Psychological feather picking
Regression to juvenile behavior (may be the only sign of illness in sick macaws)
Heavy metal poisoning
Polyomavirus