Khaki Campbell Ducklings (age?)

[mochacaramel415]

My mom and I got two Khaki Campbells from TSC last week. We were told they were under a week old? Is there anyone here who could possibly help me tell how old they are? I'll attach two pictures, one when we first got them, and now.

 

[Bills vs Beaks]

I would say week and a half to two weeks now, but no more than two. Usually they are about three days old when you get them at TSC