Calico Cats for Adoption in San Francisco, CA

Calico cats are not rare in general; they are a common sight in shelters and homes because the pattern appears in ordinary domestic cats. What is rare is a male calico, with only about 1 in 3,000 calicos being male. Calicos of uncommon breeds or with long coats may simply take longer to find in adoption listings.

A calico cat has a coat made of white plus clearly separated patches of black and orange. White often covers the chest, belly, legs and face, while the colored patches sit on the back, head and tail. Dilute calicos show softer gray and cream patches, and some calicos have tabby stripes within their colored areas.

Male calico cats are very rare, with estimates of about 1 in 3,000 calicos being male. Because orange and black coat genes ride on the X chromosome, a male needs an unusual chromosome makeup, usually XXY, to show both colors. Most such males are sterile. Some shelters see only a handful over many years, which is why they attract attention.

A cat is a calico when her coat combines white with patches of both black-based and orange-based colors. The two colors come from different versions of a gene on the X chromosome, and early in development each cell randomly switches off one X, creating patches. A separate white spotting gene adds the white areas that make the patches large and distinct.

A calico kitten looks like a small version of an adult calico, with white plus patches of black and orange, or gray and cream if dilute. The colors can look softer at first and orange areas may show faint stripes. Like all kittens, she has blue eyes that start changing at around six to eight weeks old.

Calico cats come from everywhere domestic cats live, because the pattern is a genetic coat color rather than a breed with a single homeland. The orange gene behind it is thought to have spread along ancient trade routes, and today calicos appear worldwide. Some cultures prize them as lucky, including Japan, where maneki-neko figurines are often calico.

Calico cats have three colors: white plus black and orange, which can range from deep red to pale ginger. Dilute calicos show the same pattern in muted tones, with blue-gray in place of black and cream instead of orange. In a few pedigreed breeds, chocolate, lilac or cinnamon can stand in for black, though these are uncommon.

Calico cats grow to the size of their underlying breed or mix, since calico is a coat pattern. Most shelter calicos are domestic shorthair females weighing about 6 to 12 pounds and standing around 8 to 10 inches at the shoulder. A calico Maine Coon or other large-breed mix can be considerably bigger, so ask about an adult cat's actual weight.

Female calico cats can reproduce normally, and their kittens may be any mix of colors depending on the father. Male calicos, which almost always have XXY chromosomes, are typically sterile, although a few rare fertile males have been reported. Calicos adopted from shelters and rescues are usually spayed already, which prevents unplanned litters and certain health risks.

Calico cats are best known for their striking three-color coats and for being almost always female. Many cultures link them with good fortune: Americans sometimes call them money cats, Japanese lucky cat figurines are often calico, and Maryland named the calico its state cat. They also have a folk reputation for spirited personalities, which research hasn't confirmed.

Calico cats can have almost any eye color their genetics allow, since calico describes the coat, not the eyes. Most have green, yellow, gold or copper eyes. Calicos with a lot of white occasionally have blue eyes or two different-colored eyes. All calico kittens start with blue eyes that change to their adult color over the first few months.

Calico cats are not mean as a group; the idea that they are is mostly folklore. An owner survey found slightly more reports of feisty behavior in calico and tortoiseshell cats, but the effect was small and based on perception. A cat that hisses or swats is usually scared, in pain or poorly socialized, regardless of her coat color.

Many calico cats are very nice, affectionate companions, because personality depends on each cat's genes, upbringing and experiences rather than her coat. Some are cuddly lap cats, others are independent or a little shy.

Calico cats are as smart as other domestic cats, since coat color has no known link to intelligence. Like any cat, a calico can learn her name, routines, and tricks taught with treats and clicker training. Food puzzles, wand toys and new things to explore keep her mind busy, and curious calicos often figure out cabinets and doors quickly.

Your cat is a calico if her coat shows three colors: white plus separate patches of black and orange, or blue-gray and cream for a dilute calico. A cat with black and orange mixed together but little or no white is a tortoiseshell instead. If you're unsure, a veterinarian can confirm the pattern for you.

Calico cats don't have one shared personality; each cat's temperament comes from her genetics, socialization and life experiences. Owners often describe calicos as spirited, independent or chatty, and some as sweet and cuddly, but research has not found that coat color reliably predicts behavior. Meeting the cat gives a far better picture.

Calico cats can be either long haired or short haired, because calico is a color pattern that appears with any coat length. Most calicos in shelters are domestic shorthairs, simply because shorthaired cats are more common overall. Longhaired calicos include domestic longhairs and pedigreed breeds such as Maine Coons and Persians, which need more regular brushing.

Calico cats are often taught as an example of codominance, but geneticists usually describe them as X-linked mosaicism. In each cell only one X chromosome is active, so each patch expresses either orange or black, not both blended together. True codominance shows both versions in the same cell. The patchwork coat is a visible map of random X inactivation.

Yes, calico cats can make excellent pets, since most are ordinary domestic cats with an eye-catching coat. Their care needs, from feeding and play to veterinary visits, match those of any house cat. Personality varies widely, so choose based on how the individual cat behaves rather than her colors, and ask about her comfort with children and other pets.

Calico cats are not reliably more affectionate than other cats. Some are devoted lap cats and others prefer sitting nearby, and those differences come from genetics, early handling and experiences rather than coat color. If affection is important to you, spend time with the cat before adopting and notice whether she seeks out petting and company.