S/O urban livestock allowances?

If you are in an urban setting, what are the restrictions for keeping chickens/hens/goats/etc. in your area?

In our town, you are required to have at least three acres to have any livestock.  This is ridiculous as the larger single-family lots are barely .25 acre.  There are larger lots but they get into the $1M range and are certainly out of reach for the majority of the town.  Some of us wrote a petition, got 500 signatures, and still the town won't budge, even though a large-ish city nearby allows up to six hens as long as certain requirements are met.  I'm curious if others have either overcome similar restrictions or have just kept flocks anyway and remained under the radar. 

Nope, none here.  I would be tempted to if I didn't have a bajillion neighbors, one of whom works in zoning.  Doh! He busted me for having an "unenclosed composting facility" (putting scraps in a tree stump hole and covering with leaves and cuttings and chicken wire, redneck but it worked).  :S  Chickens without legal grounds would be a big mess.  :(  

here it's three (hens, ducks, goats) here w/out a permit, but the Urban Farm Store (!) told me as long as you're a reasonably responsible citizen almost everyone gets approved for permit requests for more.

Ours is about the most generous allowance for the entire metro area.

Kansas City, MO.  It is o.k. to have a chicken coop within city limits as long as it is 100 feet away from any other building (besides your own) where people
live.  Also, you have to keep the manure from becoming a nuisance, and keep the coop in good condition.  You are limited to 15 chickens.

"Number of animals or fowl; keeping of roosters. Except where fowl, rabbits or other small animals are kept for sale within a bona fide produce market, commission house or store for the purpose of trade and while so kept are confined in small coops, boxes or cages, or where such animals or fowl are kept for purposes of research in a laboratory, or in areas zoned for agricultural use, it shall be unlawful for any person to keep or maintain, within 100 feet of the nearest portion of any dwelling or other building occupied by or in any way used by human beings except for a dwelling occupied by the owner or keeper of such animals, more than 15 chickens or other domestic fowl four months or more of age or 50 chicks or other domestic fowl under four months of age, or more than ten rabbits or other small animals over the age of four months, or more than 25 rabbits or other small animals under the age of four months. No rooster which crows shall be kept within 300 feet of any residence or dwelling except that of the owner or keeper."

we would LOVE to keep bees- don't know if they are considered 'livestock', but that would be our go to 'urban pet'