what is this duck?

[lotsachickens]

We were given some baby ducks, out of which I got 2 white ones, 2 wood ducks, and a little black duck, which I have no idea what it is. It's really pretty, black with a little white on it.
Also, how do you know their sex?

 

[Bleepmunk]

Pictures would help to tell the breed of your duck.

Try this link for sexing your ducks....

https://www.backyardchickens.com/forum/viewtopic.php?id=181147