First duck

[FloweredHemlock]

I recently agreed to take in a duck from a coworker who's just had a baby and can no longer care for it and winter is starting. I have hens, and I know I have to keep them separate but any other advice? I've never had a duck before, my Nona and Nana had ducks and they seemed to have similar care to chickens but I just want to make sure I'm covering all my bases in my research. It's just one male, I don't know his breed yet, and I can't get him any friends until spring. This woman has only ever had the one duck, so I'm sure that's not good for his mental health as a social bird.