Rescue duck

[davedin3]

Last night we got a call from a friend that there was a domesticated duck living on the front porch of a neighbor's home. She (I think a she) Has been there about a week, the family was feeding it bird seed while trying to find the owner, but nobody came forward so we picked it up tonight (the family wanted it gone). She looks thin and appears to be a female blue runner. We have five other ducks there are much larger. I would like to know if anyone has any advice on how to introduce them. We tried to just put her in with the others, but they started rubbing their heads all over her, then started pulling her feathers on her chest. We removed her and segregated them for now, there is chicken wire separating them so they can see and smell eachother. Any advice?

 

[TLWR]

Do just what you did - keep them separated by a fence - and you might want to keep them even more separated in case she's carrying anything that could be transferred to your existing flock.

But to introduce, let them see each other, but not get to each other. Then if you do any free range time, let them free range supervised together, then remove her to a safe area when you can't watch (or them - or alternate). Gradually increase the time they hang together without supervision. Start letting them spend nights together - then when you think they are ready, have at it.