I'm very new to this site and i need help. I have a full grown duck. a farm duck? I'm not sure of the name. it's white. And i'm very concerned. lately she hasnt been able to stand up or walk. she lays on her stomach and has her feet sticking out behind her. and what bothers me the most is that while this is happening, her neck looks crooked and she keeps jerking it back and forth from time to time. im really worried.