Are these call ducks?

[Callduckies]

I have 4 ducklings that are supposedly call duck, but they are so much bigger than I think they're supposed to be and their beaks are very long. I got them as fertilized eggs and picked up the eggs myself, and I only saw call ducks on the farm I got them from. They are 2 weeks old.
Edit: The brown one is from a completely different place than the yellow ones and is 2 weeks older than they are

 

[cheezenkwackers]

Ducks grow really fast. They could very well be call ducks.

 

[JacinLarkwell]

How heavy are they? I don't see anything to reference their size in the picture

 

[Callduckies]

How heavy are they? I don't see anything to reference their size in the picture

I measured one and it was 11 oz which is about what another duckling I have that is 4 weeks old (twice the other 4s ages) weighs.

 

[TheQueenOfDucks]

I have 4 ducklings that are supposedly call duck, but they are so much bigger than I think they're supposed to be and their beaks are very long. I got them as fertilized eggs and picked up the eggs myself, and I only saw call ducks on the farm I got them from. They are 2 weeks old.
Edit: The brown one is from a completely different place than the yellow ones and is 2 weeks older than they are

Hi, call duck owner here!, the brown one could very well be a Grey call, but the yellow and grey beak doesn’t match any call colors I can think of. What color are they supposed to be?

 

[JacinLarkwell]

Hi, call duck owner here!, the brown one could very well be a Grey call, but the yellow and grey beak doesn’t match any call colors I can think of. What color are they supposed to be?

Those ones could be pastels, I think that's what mine looked like, but I can't remember exactly

 

[Callduckies]

Hi, call duck owner here!, the brown one could very well be a Grey call, but the yellow and grey beak doesn’t match any call colors I can think of. What color are they supposed to be?

I think they might be snowy call ducks