Here are the local laws that relate to chickens - the first is more general, but the wording on "keeping chickens" seems to really put the law in the hands of anyone who wants to complain. Obviously we CAN keep chickens as long as no one is disturbed. But who knows what might be considered a nuisance. This is why I wanted to at least talk with my neighbors first. I think it will help keep the peace in the long run.
8.12.010 Keeping of animals that disturb the peace.
A. It is unlawful for any person to keep any animal, dog, bird or fowl which, by causing frequent or loud continued noise, disturbs the comfort or repose of any person in the vicinity.
8.12.020 Keeping of chickens.
No person shall keep chickens within the metropolitan government area in such a manner that a nuisance is created.
On the other hand, it might be worth it to wait until we already have the adorable, irresistible, fluffy chicks and can show them the very fine henhouse/run that dh has built. It would be a shame to break the children's hearts and get rid of them....