I have a young (6-8 mos old) female call duck. She and her buddy hang out around the barn and they are just pets. Well for the past couple of days she has been staying in the tall grass and just being very still. Her friend would be out grazing around and swimming in his pool but she was acting odd. Today I found her lying on her back unable to right herself. She is very incoordinated and can't walk. She seems alert but just can't make her body do what she wants it to. I see no injuries. Please any advice anyone can offer is much appreciated.