Okay, So I have posted about this duck before, she is a black female cayuga about a year old. People said maybe she has mights, but I just checked her today, and nope, no mites, BUT, she has large amount of feather loss. Under her wings she is almost completely bald.... also where her wings bend (elbow?) she is starting to lose feathers. Her wings constantly twitch. And she absorbs water like a sponge... she also doesnt preen herself after bathing, she just flaps her wings, and walks away. Has anybody ever had this problem before?