What gender is my Welsh Harlequin ducks?

[BackyardAnimalsDucks]

I have a pair of welsh harlequin ducks. They are 6 weeks old. They look almost the same besides one being bigger. The bigger one is the one I suspect is a male. At the time I got them(~3 days old) they were determined to both be females by me but now I think they are a male and a female. The big one is more quiet but it does quack and it’s a raspy quack. The smaller one is loud and loves her voice. She has more of a quack. Are they my prediction of gender? I know the male is supposed to have a yellow bill but their voice is different. When I picked them up the small one definitely was louder. Also there names are Smor’s(idk how to spell it and it’s the hopefully male one) and Charlotte(female)

 

[Miss Lydia]

Pictures?

 

[Chelsa'sChicks]

We need pictures please

 

[FluffTheDuck]

We need pics

 

[BackyardAnimalsDucks]

We need pics

Left is possible male and right is female

 

[Miss Lydia]

@Table4Six

 

[chickens really]

I'm thinking two Drakes...

 

[lomine]

If S'mores is making a raspy, frog-like sound than he's a drake. I describe drake sounds like a goose with a sore throat.

 

[BackyardAnimalsDucks]

If S'mores is making a raspy, frog-like sound than he's a drake. I describe drake sounds like a goose with a sore throat.

he does. Charlotte does quack but when she’s not she makes a almost duckling peep (monday they will be 7 weeks old). so smor’s i know is a male but idk about charlotte also in the pic left is charlotte. today i’ve let them free roam.

 

[BackyardAnimalsDucks]

at this point i’m praying for a male and female.