My Dutch Hookbills are small, quiet (even the duck - I never hear anything from her), and a rare, uniquely beautiful breed to boot! When they grow up, the drakes have blue bills and the ducks have pink bills, like my lovely little pair (pictured as juveniles) :
And here they are again, a little bit more grown up, all wet after a swim in their pool:
Eve... (standing next to her Dark Campbell sister, Piper)
...and Denny, all puffed up and drying off in the sun (along with all sorts of Dark Campbells and Runners - both of which are LOUD breeds, if you ask me)
These two were the friendliest ducklings I've ever had - and now, grown, they're the calmest of the breeds I keep. I was introducing the ducklings to my dog one day, and all of the Runners and Campbells started flipping out, squirming around and peeping their heads off - but the Hookbills ducked down and hid their faces under my thumb!
I've been in love with the breed ever since.
If you want quiet, whatever you do, DO NOT get Campbells - duck OR drake, they're always making a ruckus!