Even though the commercial trade of Tortoiseshell was banned in 1973,
products made from Hawksbill turtle shells are still being sold openly throughout Central America, the Caribbean and Asia.
For this reason, and potential other health problems with the cat,
even when these rare fertile male calico or Tortoiseshell cats do pop up,
they are almost never used for breeders as there are simply no advantages, and some disadvantages, to using them over more virile felines.