Find out who is on the city council. Google there names usually they say stuff about them self and you might be surprised to find one or two that grew up on a small farm. (That your target) allies that will help from the inside. Get to know them if they own a business go there and talk to them (not about chickens) and get on a friendly basis. ..... if all that is not available to you. You should be able to speak with the council and say "Mr Jones when you grew up on the farm was there any issues with your chickens making noise after dark to where it kept you awake all night. When he answers no hammer him and ask why you can't have them. Have all your fact and figures to...Good luck