what breed is a calico cat

A calico is not a breed. It is a colour pattern, three colours splashed across one cat, and a calico can be almost any breed, or none. There is one genuinely fascinating twist to the calico that sets it apart from the other patterns, and it is worth the read. But the breed answer is the same as always: your calico is most likely a magnificent moggy. Here is the full story.

A calico cat is a cat with a tricolour coat, patches of white, black, and orange, often in bold, irregular blocks. The name describes that particular splashy three-colour arrangement, not any breed. Calico patterning can appear on pedigree cats of various breeds and, far more commonly, on ordinary domestic cats, so the pattern tells you about the coat and almost nothing about the ancestry.

the reason nearly all calicos are female

This is the genuinely interesting part. The genes for orange and black coat colour in cats sit on the X chromosome, and a cat generally needs both an orange gene and a black gene to display both colours at once. Female cats have two X chromosomes, so they can carry orange on one and black on the other and show both. Male cats have only one X, so they normally show one colour or the other, but not both. This is why the overwhelming majority of calico and tortoiseshell cats are female. It is not folklore. It is chromosomes.

Male calicos do exist, but they are rare, and they almost always carry an unusual chromosome arrangement, typically an extra X, which lets them show both colours. Because of that arrangement, these rare male calicos are usually sterile and can have some associated health considerations. A male calico is a genuine curiosity rather than a breeding prospect.

calico, tortoiseshell, and the white

People often mix up calico and tortoiseshell. The simplest way to hold them apart is the white. A calico has distinct patches of white, black, and orange, with the white usually prominent and the colours in clear blocks. A tortoiseshell has black and orange marbled closely together with little or no white, giving a mottled, brindled look. They come from the same orange-and-black genetics; the white spotting gene is what breaks the colour into the bold, separated patches that make a calico.

so what breed is your calico

If your calico has breeding papers, its breed is on the papers and the tricolour coat is simply its pattern. Several breeds can carry calico colouring. But most calicos are domestic shorthairs or domestic longhairs, the proper term for a cat of mixed or unknown ancestry, which is to say the wonderful, common moggy that most calico owners are lucky enough to have. Calicos are celebrated in folklore around the world as lucky cats, and in some places as money cats, which is charming, though as ever it says nothing about the individual cat's temperament. Personality comes from the cat, not the colours.

If you truly want to trace a cat's breed heritage rather than admire its coat, a feline DNA test or a vet's assessment is the honest route. But for most calicos, the happy and accurate answer is that they are lucky, genetically fascinating moggies, and almost certainly little ladies.

Related reading from my desk: what breed is an orange cat (the other side of the same genetics), what breed is a tabby cat, and the full cat breeds guide.

To identify a cat's actual breed ancestry rather than its coat pattern, a feline DNA test or a vet's assessment is the way. Rare male calicos in particular should be seen by a vet for advice on their specific needs. I am a cat with opinions, not a veterinarian.