What is my Duck? 🦆

[Yep I Talk To Chickens]

Two questions;
1. Breed?
2. Gender
Info: The first duck is Fifi, 3 weeks old (I know that's a bit young for age but any guesses?), I'm thinking boy. The second duck is Gertrude, 4 weeks old, I'm thinking Khaki Campbell, and girl. Thanks for your opinions!!!
I will add a file of the ducks voice later.

 

[Dynasty and Delta]

Two questions;
1. Breed?
2. Gender
Info: The first duck is Fifi, 3 weeks old (I know that's a bit young for age but any guesses?), I'm thinking boy. The second duck is Gertrude, 4 weeks old, I'm thinking Khaki Campbell, and girl. Thanks for your opinions!!!
I will add a file of the ducks voice

I have two ducks that are half cayuga and half mallard, and your duck looks very similar to my my ducks when they were that age. They had the same little green on their heads, the same orange feet with black webbing, and the same green and black bill.Here are some pictures. The reason they have a little white on their chest is because their dad is a bibbed mallard.