Ducks and Chickens, Friends or Foes?

I have some questions about duck and chicken interactions.

First, let me explain. I have one chicken at the moment but will soon (hopefully) start to integrate two more. Now at the moment I am not looking for a duck, but possibly in the future.

Say in the spring I have 3 chickens, am raising a few baby chicks (which I do plan on doing) and I put a duckling in there with the new chicks. Would they notice that one is not like the other? Or would they accept the duck as one of their own? I understand that feeding/watering situations may be different from chickens but I'm just curious as to how they would live together.

I'm assuming most people keep ducks and chickens separately if they do have both but you never know. Our one chicken right now (Goose) loves our dog Duke, now that she no longer has her two friends to roam the yard with So maybe she would like to have a friend Duck! Thanks, Wyatt

P.S. How do ducks do in cold weather? And can you eat duck eggs as you would Chicken eggs?

Ducks and chickens can get along together, yes. However, ducks are WAY WAY messier, and you can't have male ducks with female chickens because the drake may try to mate the hen and injure her. It can be tricky to keep the chickens' area dry while still providing water for the ducks, too.

And you can definitely eat duck eggs! They're great!

Ducks, I believe, are more cold-hardy than chickens because they are not so prone to frost-bitten combs and because their waterproof feathers are so thick. (Muscovies are sensitive to the cold, though.)