Weird rules where I use to live.
Keeping of chickens for individual domestic purposes subject to the following restrictions:
Keeping of chickens shall not be permitted on lots smaller than 10,890 square feet in lot area.
No more than five (5) chickens shall be permitted on a residential lot.
Chickens shall be registered with the Delaware Department of Agriculture.
Chickens shall be penned in a coop that shall be at least four (4) square feet per chicken.
All chicken coops shall be located in a rear yard and shall be a minimum of 20 feet from side and rear property lines.
Any odor associated with the chickens shall not be discernable from property lines.
Keeping of roosters shall be prohibited.
Any lot with chickens shall either comply with these requirements by June 1, 2016 or remove the chickens.
And this in a state where the commercial rearing of chickens is a major industry.
If I'd have had chickens when I lived in Delaware (near Millsboro), no odor from my coop would have been detectable over the odor from the commercial chicken houses and the manure spread on the farmers' fields.