What are the causes of anorexia and lethargy in birds?
There are many causes of anorexia and lethargy in pet birds. These include cancer, viral or bacterial infections, fungal or yeast infections, parasites, endocrine or hormonal diseases, and organ specific problems such as liver, heart or kidney failure. Some diseases such as proventricular dilatation do not have a known cause but can produce the signs of anorexia and lethargy. Anorexia and lethargy are not diseases themselves but indicate a serious underlying medical problem. Do I have to take my bird to the doctor immediately, or can I just “wait and watch” and see if he improves? Unlike dogs and cats, birds are still “wild” pets. This means that they still retain their preservation response. The preservation response is something unique to wild animals. In the wild, an animal can’t “act sick,” every time he feels bad. If it did, it might be killed by a predator or even a member of his own group. The preservation response assures that a sick animal will not “act sick” until it is reall
