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How to spot signs of bacterial infection in parrots
Look for changes in your bird's appearance.
Chlamydiosis can cause loss of appetite which can lead to weight loss. A parrot with chlamydiosis may also have ruffled feathers and in general may appear unkempt.

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+ Symptoms such as weight loss or ruffled feathers can signal a variety of illnesses. If your bird has these symptoms, however, you should get it checked out by a veterinarian.
+ Chlamydiosis may also cause poor vision and hearing. Often, missing food due to poor vision may cause your bird to regurgitate before moving on.
+ Always inspect your bird carefully to make sure something is wrong. Lories are usually clean and well-fed and have not curled their feathers.
+ In rare cases, your bird may also produce feather waste. Keep a journal or use a book or app to note changes in your parrot's appearance.
Symptoms such as weight loss or ruffled feathers can signal a variety of illnesses. If your bird has these symptoms, however, you should get it checked out by a veterinarian.