Bitches in heat shall be confined.
Sec. 4-27. Confinement of bitches in heat and stray dogs.
(a) It shall be the duty of the owner, or any person having control, of any bitch to securely confine such dog and keep it concealed from view while such dog is in heat or proud.
(b) It shall be the duty of any police officer to impound any such bitch not confined as required herein.