I must have the odd one out with my cayuga then! She's a noisy girl! Quacks to be let out in the morning, quacks when she sees or hears us - and it is a very noisy loud quack! We're trying to train her not to want to be let out before 6.30/7 now so we don't annoy our neighbours! Befire she was quacking to be let out at 5am!
Our khaki campbell is very quiet. Only heard her do a koda quack when she was scared as there was a cat in the garden.