Hello. Today when I went to lock up my birds, I realized that the ducks were still out. I went tp chase them in when I realized that our year and a half old female Pekin wouldn't walk. I picked her up and set her down by the door so she could go over to her bed. She stood up and rocked back and forth with her wings extended for balance before falling down. A couple minutes later, she managed to walk a couple steps before falling again. Is there anything that I can do? My dad thinks that she has lost weight, but I'm not so sure.