Yes, male calicos do happen but it is very rare, and if they do happen to live, they are sterile anyways. This is probably because if you bred two calicos you would end up with genetic disorders. I have heard of this in some breeds of dogs. Like pomeranians. If you end up with a blue merle thats great and if you want to breed a blue merle to say a creme that great too but if you breed two blue merles together then your looking for trouble. You end up with sterile, unhealthy puppies.
0.0.1 Red Tail Green Rat Snake, 2.1.2 Corn Snakes, 0.0.1 Albino Banded Cali. Kingsnake, 0.0.1 Pueblan Milksnake, 0.0.1 Yellow Rat Snake, 0.1 Veiled Chameleon, 1.0 African Spur Thigh Tortoise, 0.0.1 Crested Gecko, 0.1.1 Armadillo Lizards, 0.0.1 Leopard Gecko, 0.0.1 Tiger Salamander