Like Shad pointed out, a focus on noise instead of a focus on banning roosters and limiting the size of hen flocks is more sensible.My dogs easily make more of a racket than my rooster did, and they’re not the loudest in the neighborhood. When I was attending meetings for proposed adjustments to the chicken ordinance, one fellow came to speak against some of the proposals because, in his words, he bought a house in the city limits because didn’t want to live next to a farm. And there were plenty of loopholes in the old ordinance that justified his concern. There were a few that shows up to argue against the rooster ban, but I always saw it as a loosing battle. I was was happy that the argument that several people (myself included) were making in favor of increasing the number of allowed chickens was supported by the community council. So while I think the rooster bans are silly, I do recognize that plenty of people don’t want ‘farm sounds’ especially when they’ve had negative experiences with neighbors who don’t take good care of the animals they have.
The "no excessive noise" approach is what my local council does and it's quite good. At first, one of my neighbours was worried about the noise the hens would make but recently told me she couldn't believe how quiet they are, which is good to know because I don't to disrupt her lifestyle through my choices. There's a house at the end of the street which only shares fences with 3 neighbours (I share fences with 5) and they have a rooster. I assume no one has complained about the noise because he's been there for months now. Frankly, I love hearing him crow and would be disappointed if he had to go. There's another rooster at the other end of the street, again that house only shares fences with 3 other houses. He's been there for years.
At the same time, if all the houses had roosters, Houston, we'd have a problem!