I was asked by a friend at work if I could babysit her duck over the Winter. She only has one duck, which was raised with her chickens. She is getting rid of the chickens this Fall, and starting a new flock in the Spring, but she doesn't want the duck to be lonely over the Winter. I have 9 hens and 1 rooster that free range, can I easily add this lone female Peking duck to my flock without any problems? Are there illnesses I need to be on the lookout for? Any advice would be greatly appreciated as I know less than nothing about ducks. Thank you.