I had a duck several week ago that shower the following symptoms and died within three days. - trouble walking - wings drooped at her sides - loss of balance/would fall over when bumped by other ducks and wouldn't be able to get up for short periods of time Now, a couple of week later, I have another duck with very similar symptoms. However he has shown these symptoms for over a week and is still alive. He is eating and drinking well. When he first started showing symptoms I separated him. After a few days, when he appeared better, I put him back with the flock. He acted fine for three days, then started showing symptoms again so I separated him once again (in a dog kennel in a heated shed). Not sure what is wrong or what to do about it. Any help would be wonderful. Thanks!