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Parrot Wasting Syndrome - Macaw Wasting Syndrome

By Alyson Burgess, About.com

Definition: Parrot Wasting Syndrome and Macaw Wasting Syndrome are two names for a disease that can affect all psittacines, not just macaws.

Parrot Wasting Syndrome is also known as Proventricular Dilatation Disease, or PDD. It was found to be caused by the Avian Bornavirus in the summer of 2008.

Symptoms of Parrot Wasting Syndrome include weight loss, change in droppings, vomiting, and a swollen, hard crop.

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