I live in the city. I have 2 Australorps that are 5 months old. One has been laying for a week, the other has just begun. For the past month, the one that has just started laying eggs has been expressing herself with "bok bok bok bok BAWWWWWK bok bok bok bok BAWWWWWWK". This happens at almost exactily 7am every morning. Its like clockwork and has nothing to do with eggs.
Other than that noise, which lasts about 20 seconds if i dont do anything, the only time I hear them make a loud noise is when there is something legit to 'bark' at like them seeing the neighbors, or birds in the yard or if they can't find one another.
What I do to keep the noise down is simply run out there the second I hear it and throw chicken feed out.. that shuts them up
The dogs have learned that when they hear the chickens make that noise, they should come out running to investigate. Could be trouble!
I only have one loud one.
http://tamanaka.com/MainGallery/ImageAndCaption.aspx?ImgID=145
I dont ever hear anything from the other one, and even at their loudest, they aren't as loud as my dogs can get (or the neighbors dogs). its just unusual, and for someone who doesn't want to create friction, it can be a bit unnerving. I just make sure I know the law and everything is cool.
In my city it falls under the noise ordinance. But who can hear a chicken with all those dogs barking
hope this helps a bit!
Oh, and they do 'talk' a lot. its just not loud. they've very expressive, especially when they dont like something