As someone mentioned the ordinances, I am wondering if this happened in a residential neighborhood where perhaps the chicken owner, in order to keep chickens, had to declare them as "pets" since technically "livestock" can only be kept agriculturally. Does that make sense?
Either way though, I'm sorry ... A person does have the right to bear arms, city limits or not. Are you telling me that in the limits of that city I can't shoot someone who is maliciously on my property with the intent to do damage?! I'm not sure about that whole "city limit" thing. It sort of freaks me out.
I hope there is follow-up posted as well. I'd do anything to keep my chickens safe, too BUT ... if I were breaking the law to keep said chickens on my property (as many people who live in cities are and as I am too) maybe I wouldn't be so quick to pull out my pellet gun. It's sort of like calling the police to report that the person you were buying marijuana from sold you catnip instead. Right?!!