All female animals within the city upon coming in heat, shall be kept in a secure enclosure or under the complete control of the owner by the use of a leash for a minimum period of twenty-one (21) days beginning the first day the evidence of attraction is noticeable to the owner. Any such female animal, running at large, demonstrating evidence of attraction shall be picked up by the Animal Control Officer and confined in the city pound. If such animal cannot be identified, it shall be impounded in the city pound for five (5) days. If no person claims said animal it may be sold to new owners or destroyed by the Animal Control Officer. If the owner of the animal can be located, the owner shall be notified and may obtain said animal upon giving proof of good intention and ability to confine said animal as required herein and by paying the fees involved. If such animal is picked up by the Animal Control Officer for the third time, said animal shall be kept confined until no longer in heat and the owner, before being allowed to obtain the animal, shall pay all fees involved, including a signed legal consent and payment in advance to have said animal spayed by a veterinarian, otherwise, said animal shall be destroyed by the Animal Control Officer (Ord. #818, 02/04/93).