They do make an insane variety of noises! The loudest seem to be egg-related with my group. Then there is the general complaining (well.. maybe they aren't complaining but they sure sound like it!). Then there is the 'hurry up, something is wrong', which sounds sort of like general complaining, but is louder, and everyone does it when they see me (as in.. 'hurry up the wind blew the popdoor closed!' or 'hurry up we need more water!').
Funny chickens! They crack me up. They sure are a talkative bunch! And the house DOES muffle the sound from my girls.. to a certain extent. We have 2 acres, and they are nearly at the very back. Some mornings when I take ds to the bus (at the very front) I can hear them saying they are laying eggs.
Glad to hear they may quiet down. Really, they USED to be SO very quiet. Visitors didn't know we had chickens unless they spotted the house/run. Now.. LOL! totally different.