Ducks and chicken sexes

[Flockincrazy]

Hello. I’m new here and to the outdoor bird world (I’ve had indoor bird pets my entire life).
I am going to get 10 female chics in a few weeks and want to add 4 ducklings shortly thereafter. Both will be in separate brooders etc.
*my question is.... can I get all female
ducks? Do I have to get a drake?
(I will have a separate duck coop but the chickens and ducks will share a huge free range area... predator proof)

thank you!!

Unless you want fertile eggs no boys are needed for ducks or chickens