When will they be full grown?

[IRL]

Hi
I have two white call ducklings that I hatched myself. They are about six weeks old now. They have about 2/3 of their feathers in. When will they be full grown?
Thanks

 

[IRL]

Bumb

 

[IRL]

Anybody?

 

[featherfinder]

I have 2 runners that are about 10 weeks and have all of their teenage feathers lol.

Dont know if it is the same for call ducks.