First of all, thank you to everyone who has helped us out with great advise! We did work with a wildlife rehab specialist and did successfully release all five mallards. They are doing well. They don't see me check up on them, but I am wondering if I can visit? We live near Wisconsin and the water and weather are getting cold. I am worried about migration. They have mixed in with some of the other wild mallards, but are often in their own group. I think one of our females has a mate.

Thanks for any advise. I want to see them, but do not want to risk them not migrating.