Q. Is there a city ordinance for keeping chickens in the back yard

There is a city ordinance:

The keeping of more than three (3) chickens within a recognized residential subdivision on a lot of less than one (1) acre is prohibited.

(b)

The keeping of roosters, geese, guinea fowl, ducks, turkeys, or peacocks is similarly prohibited in recognized residential subdivisions on lots of two (2) acres or less.