What kind of duckstuff are they?

[cluck queen]

can you guys make out who is a Drake and who is a hen. I only am receiving 1 egg but have not had any in over a month now. The black duck is super noisey and never extensive his neck upward. Is it supposed to be like that? What breeds are these?

 

[Welshies]

can you guys make out who is a Drake and who is a hen. I only am receiving 1 egg but have not had any in over a month now. The black duck is super noisey and never extensive his neck upward. Is it supposed to be like that? What breeds are these?

The black is probably a Black Swedish, or maybe a Cayuga. Does he quack? If so it is a female.
The top two may be Buff or Saxony, and they both look like females to me. You should try voice sexing them, just carry one at a time away from the rest and see if it quacks or makes a raspy chirp. Females quack, makes don't.