If you have less than ½ acre, say ¼ acre, you would be allowed 12 hens.
17.88.140
D. Chickens, turkeys, ducks, geese, rabbits or similar sized animals shall be permitted in any zone district provided they are kept in a clean and sanitary condition and the total number shall not exceed twenty-five (25) per one-half acre. Roosters over three months old shall not be permitted in the R-1 zone district
17.88.140
D. Chickens, turkeys, ducks, geese, rabbits or similar sized animals shall be permitted in any zone district provided they are kept in a clean and sanitary condition and the total number shall not exceed twenty-five (25) per one-half acre. Roosters over three months old shall not be permitted in the R-1 zone district