What Breed of Duck?

[XLoveChickensX]

Hello-
I have made a past thread about a question if my duck,

DuckDuck, was a Magpie or a Black Swedish. I guess I completely forgot about researching what a Black Swedish duckling looked like. DuckDuck looked like this as a baby:

She looks like what I found online. A Black Swedish baby. She now has another sibling, the same breed.

..of which looks the same as she did. But my question is:
If DuckDuck and her sibling look like Black Swedish ducks, what breed is the mom, Holly? Holly is this lovely one:

/But, I don't know what Holly looked like as a baby. When I adopted her, the person I got her from I don't think said what she looked like as a baby.
So if Holly's babies either turn out as Swedishes or Rouens, is Holly a Swedish? Holly is maybe 3 or 4 years old, and could look like she is now due to her age?
-Thanks for your thoughts and help!

 

[Quacking Pigeon]

DuckDuck looks like a Black Swedish and Holy could be a Black Swedish just with too much white or possibly a magpie. They are very pretty ducks.

Edit: Black ducks tend to get whiter after each molt.

 

[XLoveChickensX]

DuckDuck looks like a Black Swedish and Holy could be a Black Swedish just with too much white or possibly a magpie. They are very pretty ducks.

Edit: Black ducks tend to get whiter after each molt.

Ah, thank you. Holly is an older duck. That explains a lot! The molting fact is very useful. Thanks again!

 

[carlyducks]

The first picture is defiantly a black swedish!