Different sounds?

[Kessel23]

I got 2 buff ducklings from a swap meet, one of them has a softer raspier chirp than the other. I know with adult ducks this would mean that one is a drake but I did not think there was a difference between chirps as small ducklings. I have had rouen ducklings and I have 5 rouen pekin cross ducklings and a saxony duckling right now, all of them sound the same. Do you think this one has something wrong with him or are buff ducks just different from other ducks? He is eating, playing, drinking, sleeping, and his poops are normal.

 

[Miss Lydia]

I have 2 Buffs and since they are almost 2 yrs old don't remember them having different peeps can you do a video so we can hear what your talking about.

 

[chickens really]

How old are they?...