New duck mama, help with genders?

[WhitneyDD729]

I have 7 ducks we got from Rural King back in August. I think the 5 largest are boys and the two small are girls. The crowned duck is my only quacker so far. No curled tails yet. Thoughts? Feel free to guess type too, I’m pretty new to this.

 

[The Moonshiner]

I think the crested one may be your only female

 

[Canadian Wind]

The problem with purchasing from a store like that is that the hatchery gets rid of it's extra males through them. Unless specifically labelled as females, you're likely to get males.

I agree with Moony, the Crested is female, the others all look to be males.