noise level of a few hens?

We have 4 indian runner ducks and 1 welch harlequin duck. One of the runners is a loud mouth - though they all can be if they are hungry.

Still doing some research on adding a few chickens to the mix (3 hens). What noise level will be likely with 3 hens.
Looking at orpingtons or maybe a brahma. THough still figuring out what we can find locally. Wanted pullets or adults, but will likely see about finding day olds so we won't have to worry as much about what adult birds bring to the mix (or what the ducks expose them to).