Cayuga Drack or Duck?

[Finny]

I am starting to have some doubts as to if my cayuga drake is really a drake. He doent have a curled tail feather yet and all my other drakes do and they are all the same age. Also he has some white feathers coming out from under his wings and i heard only girl cayugas have white feathers. But he sounds just like my other drakes. I have also heard though that girl cayugas rarely make the loud quack that distinguishes them as females. Maybe I miss it when he quacks? And today when i went out to feed my ducks my drakes were trying to get on top of him. Is it just a dominance thing or were they trying to mate?

 

[Amiga]

I would separate the mystery duck for now. Carmella had laryngitis once, and Einz and Vier have gone through times of having a very un-duck-like voice, closer to a squeak than a quack.

Oh - Einz and Vier are girl ducks.