Merck Manual

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Psittacine beak and feather disease, cockatoo
Psittacine beak and feather disease, cockatoo

Psittacine beak and feather disease (circovirus) in a lesser sulfur-crested cockatoo showing a general loss of feathers on the trunk and neck. The pin feathers on the neck are not emerging.

Courtesy of Dr. Louise Bauck.

In these topics
Viral Diseases of Pet Birds