鹦鹉喙羽病，凤头鹦鹉
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.
在这些主题中
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.
