Quiet breed of chicken?

I have a flock of silkies both large fowl and bantams and we get the occasional cluck. Doodle Ook but generally very little noise. I want to add a trio of interesting birds to the group. They must be quiet birds not to make too much noise though.
We have the space having reared some ducks and now having the space and the silence since they have gone.
Is there a quiet breed of miniature duck which is not going to quakc extremely loudly when it sees us?
Two questions please
If we upped the chicken numbers.
1. What breeed would be interesting adn reasonably quiet and friendly
2. There is at least one silkie cockerel in my flock already, would a very different breed cockerel bother with the silkie hens, or would it stick to its own breed?

Have to agree with Joy, any breed can be noisy. Joy had to take my silkies as they were making so much noise, yet my warrens except when having layed are quiet girls. My Poland girl is very quiet - hardly a peep from her so maybe a breed to consider (very pretty as well with their head bonnets). Talking of noisy Joy - how are the terrible twosome? 

our buff rock bantam is quiet, hardly makes a noise, very nice chuck.

martyn

from my experience, as soon as you have more than one cockerel, they compete to see who gets the last word, and crowing noise MORE than doubles. My only cockerel that doesn't make much noise is a pekin. He does crow but at low volume. My noisiest is the poland, who has quite a high pitched, piercing crow. I guess like little men, they shout the loudest, theres a lot to be said for the gentle giants!

Nice to see the gentler side of Hillfooter coming out!!  Never thought I would read a post from Hillfooter that mentioned 'sweeties' !!!

one of my silkies is a right gobby girl, the other is really quiet, the orpingtons are gentle on the ear too.

Isnt that a good example of how different people can be, and why this forum is such a good source of help and advice.....with so many people that have experiance, and different ways in which they raise the birds, we manage to get  good and varied advice from people who keep chickens in different ways, ut im sorry Hillfooter, my girlies will always be my girlies, they will have names, they will be talked to, sang to, hugged, loved and laughed at....and right before the men in white coats drag me away, i will make sure their water is topped up with ACV... different strokes for different folks eh?
(sweeties indeed )