I'm from WI, and have many relatives there, and wanted to have the facts when I was talking to my Green Bay relatives. I poured over Brown County and Green Bay's ordinances, and as far as I can see they are allowed. Basically 4 or less full grown full-sized chickens (8" or more), or 8 chicks, pullets, or bantam (miniature) breed adult chickens (under 8") are allowed on Residential lots in Green Bay. Roosters would be prohibited under Green Bay noise ordinances. see below: Green Bay WI Municipal Codes regarding Chickens http://www.ci.green-bay.wi.us/forms/Code_Book/chp8.pdf Chapter 8 Public Health and Welfare 8.04 (4) CONSTRUCTION OF ANIMAL STRUCTURES. All stables, coops, yards, pens, or other structures wherein any animal is kept shall be constructed so as to be easily cleaned and kept in good repair. The inside and outside of such structures shall be whitewashed or painted as often as necessary to keep them clean or finished with such material as can be easily cleaned. All such structures shall be kept clean and sanitary and shall not cause any objectionable odor. 8.06 ANIMALS TO BE CONFINED. (1) No person, owner, or custodian shall permit any animal (including fowl) to be at large within the City. Any animal shall be deemed to be at large when it is off the premises owned or leased by its owner or custodian unless crated, penned, or under the control of a person able to control the animal by means of a leash of sufficient strength to control the action of the animal, or such other personal attention as will reasonably control the conduct and actions of the animal. (2) No person, owner, or custodian shall permit any animal (including fowl) to be left unattended within 5' of a public right-of-way. (a) Such public rights-of-way include, but are not limited to, sidewalks, streets, alleys, and parking lots. (b) Unattended animals shall include those animals which are crated, penned, or leashed but which are without personal supervision or control sufficient to properly restrain the animal. 8.07 Rats (b) Feed for animals and fowl shall not be left on the ground, on the floor, or left in feed pans, troughs, or other feed containers any longer than necessary to feed the animals or fowl unless such feeder equipment is made inaccessible to rats. For residential and recreational feeding of wild birds, feed should be kept at all times on raised platforms which are inaccessible to rats. 8.095. BIRDS, KEEPING IN RESIDENTIAL AREAS. (Cr. GO 36-06) (1) PURPOSE. The keeping of a large number of birds in a residential district for a considerable period of time detracts from and, in many instances, is detrimental to the healthful and comfortable life for which such areas were created. The keeping of a large number of birds is, therefore, declared to be a public nuisance. (2) DEFINITIONS. (a) Bird means any animal in the Class Aves, regardless of age or sex, Sections 8.04 and 8.05, Green Bay Municipal Code, notwithstanding. (b) Residential Lot means a parcel of land zoned as residential, occupied or to be occupied by a dwelling, platted or unplatted, and under common ownership. For the purpose of this section, any vacant parcel or parcels adjoining a dwelling and under the same ownership shall constitute one lot. (3) NUMBER OF BIRDS LIMITED. Sections 8.04 and 8.05, Green Bay Municipal Code, notwithstanding, no person shall own, harbor, or possess more than four birds greater than 8 inches in height or eight birds less than 8 inches in height on any lot zoned as residential without the prior approval of the City Humane Officer, with right to appeal to the Protection & Welfare Committee; except that a clutch of chicks, or a portion of a clutch, may be kept for not more than eight weeks from birth. If more than one family resides on a residential lot, then only four birds shall be allowed on the residential lot unless prior approval is obtained from the Council. For the purpose of this section, the term family shall be defined as one or more persons. (4) MANNER OF KEEPING. To the fullest extent applicable, the provisions of Sections 8.06(1)., Green Bay Municipal Code, shall govern the keeping of birds, Sections 8.04 and 8.05, Green Bay Municipal Code, notwithstanding.