What breed is this?

[Sinadrea]

I picked "her" up today because I felt bad for my rescue duck. I think she's 4 to 5 weeks old.
Thanks, all!

Here's a video of it quacking, I saw that you can determine sex based on quacking but I'm not sure if it applies to younger ducklings. The larger one was quacking a lot more before I got it a friend:

 

[Jenbirdee]

Maybe khaki Campbell but with the bill being as light as it is, it could be a Drake most khakis especially the female females have darker bills so I’m not sure

 

[Sinadrea]

Maybe khaki Campbell but with the bill being as light as it is, it could be a Drake most khakis especially the female females have darker bills so I’m not sure

Thank you, and worst case, I hope one is a girl.