No person owning, harboring or having possession of any dog,
whether licensed or not, shall permit such dog to be at large as defined
in this chapter.
No person owning, harboring or having possession of any dog
shall allow it to chase motor vehicles, bicycles or pedestrians.
No person owning, harboring or having possession of a female
dog which is in heat (estrus) shall allow such dog to be outside the
residence of such person in an unfenced area.