BSH vs Chartreux vs Russian Blue Calgary: Identification Guide

The British Shorthair is the oldest of the three breeds in formal registry terms. Romans brought cats to Britain roughly 2,000 years ago, and the British farm cat population evolved over centuries into a sturdy hunter adapted to the climate. In the 19th century, English cat fanciers began selectively breeding from these farm cats and the British Shorthair was recognised as a formal breed by the late 1800s. The blue colour variant became the iconic look, and most modern BSH show champions still come from blue lines. The breed is recognised by CCA, CFA, TICA, and GCCF.

The head is the breed’s signature feature. BSH have a very round skull with a broad muzzle, chubby cheeks (more prominent in males than females), and a short broad nose. The eyes are large, round, and copper or deep gold for blue-coated cats. The body is compact, heavy, stocky, and broad-chested with a thick neck and short sturdy legs. Adult males commonly run 12 to 17 lbs, females 9 to 13 lbs. The coat is a dense plush single coat (no woolly undercoat layer like Chartreux) that feels like teddy-bear fur to the touch.

The breed-specific physical tell most non-breeders do not know: blue paw pads. A blue-coated BSH has blue paw pads matching the coat colour. A blue cat with pink or grey paw pads is almost certainly not breed-pure BSH. This is a fast verification step and ethical breeders will happily let you check the paw pads on a kitten.

The temperament reality often surprises new BSH owners. The breed looks cuddly and stuffed-animal-like, but BSH are typically not lap cats. They are calm, undemanding, affectionate from a respectful distance, and prefer to sit near their humans rather than on top of them. They tolerate children and other pets well but rarely actively seek affection. Adopters expecting a snuggly cat based on the look are often disappointed by the reality. Calgary BSH owners we work with consistently describe their cats as “dignified” rather than “cuddly.”

Common confusions: BSH gets confused with chunky blue Domestic Shorthair (which lacks the breed-standard round head and copper eyes), with Chartreux (which has a narrower muzzle and a woolly double coat), and with Russian Blue (which has vivid green eyes and a slim elegant body). The chubby cheeks plus copper eyes combination is unique to BSH among the blue breeds.

The Chartreux is a French breed with records dating to the 16th century. Legend ties the breed to French Carthusian monks (the Chartreuse order), though the historical link is debated. The breed was nearly lost during the Second World War and was revived through careful breeding in the late 1940s and 1950s. CFA, TICA, and FIFe all recognise Chartreux as a distinct breed.

The key BSH distinguisher is the narrow muzzle. Chartreux share the round head shape with BSH at a glance, but the muzzle is meaningfully narrower and more refined, giving the face a slightly tapered look compared to the broad-muzzled BSH. The eyes are copper to gold (never green; a green-eyed Chartreux is misidentified). Adult weight runs 7 to 16 lbs with males notably larger than females.

The body type is the second key distinguisher. Chartreux have a muscular stocky body sitting on shorter legs proportionate to the body, producing a distinctive silhouette sometimes called “potato on toothpicks.” The leg-to-body ratio is shorter than BSH and dramatically shorter than Russian Blue. The chest is broad but the overall outline is more compact than BSH because of the shorter leg length.

The coat is the third distinguisher and arguably the easiest to feel. Chartreux have a woolly water-resistant double coat with a dense undercoat and a slightly resilient guard coat. The feel is closer to sheep’s wool than to the plush teddy-bear feel of BSH. The water-resistance is a real working-cat adaptation from the breed’s farm-cat ancestry. Running a hand through a Chartreux coat feels meaningfully different from running a hand through a BSH coat.

Temperament is the “silent smiler” reputation. Chartreux are famously quiet, sometimes nearly mute, with a permanent slight upturn at the corners of the mouth that reads as a faint smile. They are gentle, observant, attached to their humans without being demanding, and tolerate handling well. The breed is often described as the cat for people who want feline company without feline noise.

Calgary rescue availability is essentially nil. Worldwide Chartreux registration numbers run in the low thousands, with most breeding stock concentrated in France and the United States. A true Chartreux at a Calgary rescue would be a once-in-a-decade event. Almost every Calgary rescue listing tagged Chartreux is either a misidentified BSH-look mix or a chunky blue DSH with a woolly-feeling coat. Adopters who specifically want Chartreux are realistically looking at breeder routes through France or the United States with import logistics, or at Specialty Purebred Cat Rescue cross-border placements.

Russian Blue origin traces to the Archangel Isles, a Russian port from which the breed was exported to Britain in the 1860s. Early British breeders refined the type, and the breed gained registry recognition through the late 19th and early 20th centuries. The breed nearly collapsed during the Second World War, was revived through outcrosses to other blues (including Siamese), and gradually returned to type by the 1960s. Modern Russian Blue is recognised by CFA, TICA, FIFe, and the Canadian Cat Association.

The single fastest identification tell across all three blue breeds is here: vivid green eyes are mandatory in the Russian Blue breed standard. A blue or grey cat with copper or yellow eyes is not a Russian Blue, regardless of seller claims. Russian Blue kittens are born with blue eyes that transition through amber to vivid green by 12 to 16 months. An adult Russian Blue with anything other than vivid green eyes is not breed-pure. This rule is consistent across every major registry.

The body type is the second tell and distinguishes Russian Blue from both BSH and Chartreux. Russian Blue have a long, slim, elegant body with long legs, a refined wedge-shaped head, and a slender neck. The silhouette reads as athletic and aristocratic rather than compact and chunky. Adult weight runs 7 to 12 lbs, notably smaller than BSH or Chartreux. If you place a Russian Blue next to a BSH the difference is immediate: the BSH is twice as visually substantial.

The coat is the third distinguishing feature. Russian Blue have a short silky double coat with silver tipping at the ends of the guard hairs. The tipping creates a shimmer effect under light that neither BSH nor Chartreux produce. The coat stands slightly away from the body rather than lying flat, giving the cat a faintly plush outline despite the short length. The blue colour is uniform across the coat with no markings or pattern.

Russian Blue produce lower levels of Fel d 1 (the primary cat allergen) than most breeds, which is why the breed gets marketed as hypoallergenic. No cat is truly hypoallergenic. Lower Fel d 1 is not zero Fel d 1, and individual allergy response varies widely. Some allergic people do well with Russian Blue and some still react. Before committing, spend extended time with the specific cat to confirm tolerance.

Temperament is shy and bonded to one or two humans. Russian Blue are reserved with strangers, slow to warm to new people, and intensely attached to their chosen humans once trust is established. They tend to be quiet, observant, and routine-loving. Households with frequent visitors or chaotic schedules sometimes find the breed too withdrawn; quiet households suit them well.

Calgary rescue availability is meaningfully better than BSH or Chartreux because the breed has a wider distribution. Slim grey DSH with green eyes appear in Calgary rescue networks regularly and may carry partial Russian Blue ancestry. Pure Russian Blue surrenders are uncommon but not unheard of. US-based breed-specific networks like Specialty Purebred Cat Rescue occasionally facilitate cross-border placements of retired breeder cats into Canadian homes.

Walk through the MEOW Foundation listings or the Calgary Humane Society cat section and you will see blue-coated cats tagged BSH mix, Russian Blue mix, and occasionally Chartreux. The real rate of registered breed ancestry in these cats is low. Most are one of the following:

• BSH mix: usually blue or grey Domestic Shorthair with a round face, plush coat, and stocky build. May carry partial BSH ancestry, may just be a chunky blue DSH that looks BSH-shaped. Without paperwork, treat as DSH from a cost and care perspective.
• Chartreux: almost always misidentified. True Chartreux in Canadian rescue is essentially nil. A Calgary rescue cat tagged Chartreux is realistically a BSH-look mix with a slightly narrower muzzle or a chunky blue DSH with woolly-feeling coat.
• Russian Blue mix: slim grey Domestic Shorthair with green eyes. May carry partial Russian Blue ancestry; less rare than BSH or Chartreux mixes because Russian Blue is a more widely distributed breed. The slim build plus green eyes plus grey coat combination is the most credible mix signal among the three.
• Pure surrenders: occasional, especially BSH. Households overwhelmed by daily grooming costs (for BSH plush coat seasonal shedding) or breed-specific health costs sometimes surrender adult cats with paperwork. Rare but not unheard of at Calgary intake.

The honest framing we tell adopters: the breed label on a rescue listing is foster shorthand for the visual look, not verified ancestry. Foster notes that describe the actual cat (body type, temperament, coat texture, paw pad colour, eye colour) are more useful than the breed tag. If a foster note reads “round head, copper eyes, blue paw pads, plush coat, stocky build, 13 lbs,” you have actionable information pointing to genuine BSH ancestry. If it just reads “BSH mix,” you have a label.

Common adopter mistake: assuming purebred because the cat looks the part. The look is the easy part; the breed verification is the hard part. Without pedigree paperwork, all three breed labels translate to “DSH with the look” from a cost and care planning perspective. That is not a bad thing. Most adopters who want a blue cat for the look and temperament find the rescue route satisfies the want at a fraction of breeder cost.

British Longhair is the long-haired variant of the British Shorthair. The long-hair gene entered the BSH gene pool through mid-20th century Persian outcrosses used to rebuild breeding populations after the Second World War. The long-hair gene is recessive, so BSH litters occasionally produce long-haired kittens when both parents carry the gene. By the late 20th century, breeders began selectively breeding for the long-haired type and the British Longhair stabilised as a distinct breeding population.

The registry positions split:

• TICA: separate breed since 2009. British Longhair advanced to championship status in 2009 and has its own breed standard distinct from British Shorthair.
• CFA: separate breed since 2014. CFA accepted British Longhair as a provisional breed in the early 2010s and granted championship status in 2014.
• FIFe: separate breed since 2017. FIFe recognised British Longhair as a distinct breed in 2017.
• GCCF (United Kingdom): variant only. GCCF does not consider British Longhair a separate breed; long-haired British cats register as British Shorthair Longhair variant rather than British Longhair.

The same kitten can have papers reading British Longhair (TICA, CFA, FIFe) or British Shorthair Longhair variant (GCCF) depending on which registry the breeder uses. Both registrations are legitimate. The cat itself is identical regardless of paperwork wording.

Why GCCF holds the variant position: GCCF reasons that the long-hair gene is a coat variation within one breed (similar to how some registries handle Persian and Himalayan), not a genetic split that warrants separate breed status. The reasoning is internally consistent; it just differs from the position TICA, CFA, and FIFe converged on.

Calgary rescue availability: British Longhair is extremely rare. A BL surrender at a Calgary rescue would be exceptional. Long-haired blue cats at Calgary rescues are almost always long-haired Domestic Shorthair or DLH with partial Persian or BSH ancestry. If you specifically want a documented British Longhair, the breeder route is realistic; the rescue route is not.

If you are buying a kitten from a breeder rather than adopting from a rescue, breed verification matters. The step-by-step is similar across all three breeds with breed-specific DNA testing differences.

1. Ask for CCA, CFA, or TICA registration paperwork by name. A vague “registered” claim is not enough. The breeder should provide a specific registration number and cattery name. Cross-reference the cattery on the registry online directory (cca-afc.com for CCA, cfa.org for CFA, tica.org for TICA). If the cattery does not appear in the directory, the paperwork is fake.
2. Verify the cattery directly. Both CFA and TICA maintain searchable breeder directories. The Canadian Cat Association directory at cca-afc.com lists Canadian catteries specifically.
3. Confirm both parents are registered with photos and registration numbers. The pedigree should document at least three generations back.
4. Confirm breed-specific DNA test certificates:
   • BSH: PKD1 (polycystic kidney disease) and Blood Type testing through UC Davis Veterinary Genetics Laboratory. Blood type B is more common in BSH than in most breeds, and blood type matters for emergency transfusion planning and breeding compatibility.
   • Chartreux: GSD IV (glycogen storage disease type 4) through UC Davis VGL. This is a Chartreux-specific recessive genetic test; ethical Chartreux breeders test before breeding.
   • Russian Blue: no breed-specific DNA panel is universally required, but HCM (hypertrophic cardiomyopathy) screening via annual echocardiogram on both parents is the standard.
5. Confirm HCM screening via annual echocardiogram by a veterinary cardiologist for any of the three breeds. HCM is the most common feline heart condition and affects all three breeds at modestly elevated rates.
6. Confirm kitten release age of 12 to 14 weeks minimum. Kittens released earlier are usually being moved before health issues become apparent.
7. Visit the cattery in person. Meet both parents. Observe living conditions. Ethical breeders welcome cattery visits; sellers who refuse visits or insist on parking-lot meets are running fraud.
8. Pay via verifiable method. Never cash in a parking lot. Etransfer, certified cheque, or credit card through a documented invoice creates a paper trail.
9. Read the contract. Look for a spay or neuter agreement, a return-to-breeder clause, and a health guarantee covering the breed-specific conditions (PKD progression and blood type confirmation for BSH; GSD IV negative confirmation for Chartreux; HCM diagnosis for any of the three).

Ethical Canadian breeders charge $2,500 to $4,500 for a registered kitten with paperwork, breed-specific DNA testing on both parents, HCM screening, and verified conformation. Anyone advertising purebred BSH, Chartreux, or Russian Blue under $1,500 with no waitlist and no health testing documentation is running a scam or selling mix kittens as purebred. The kitten may be healthy and adoptable; the label and price together are fraud.

For adopters who already have a blue or grey rescue cat and want to know what is actually in there, a Wisdom Panel cat DNA test runs around $130 USD (Canadian pricing varies with import and shipping) and reports breed percentages plus health markers.

The breed report often comes back as “mostly domestic” with low-confidence percentages because cat breeds are less genetically distinct than dog breeds. Many cats labelled BSH mix at a Calgary rescue come back as 95% domestic with no detectable BSH signal. This is not the test failing; it is the underlying reality of cat genetics, where most pet cats descend from a small set of historical populations and the breed signal is weaker than in dogs.

The health side is more actionable. The Wisdom Panel cat test reports:

• Blood type: A, B, or AB. Blood type B is more common in BSH-ancestry cats. Knowing the cat’s blood type matters for emergency transfusion planning and is information you genuinely use if the cat ever needs surgery or blood products.
• PKD1 status: the polycystic kidney disease mutation associated with Persian and BSH ancestry. Positive status gives your vet actionable kidney monitoring information for the lifetime of the cat.
• HCM risk variants: the test reports several breed-associated hypertrophic cardiomyopathy variants. Positive status flags the need for periodic echocardiogram screening.

For BSH-leaning rescue cats, the test is worth running primarily for blood type and PKD1 information. For Chartreux-leaning cats, a separate GSD IV test through UC Davis VGL is the relevant Chartreux-specific health screen. For Russian Blue-leaning cats, no breed-specific test is critical; standard feline health markers apply.

The breed report is useful for curiosity but should not change adoption decisions. The cat in front of you is the cat in front of you regardless of what the DNA test reports about ancestry percentages.

Calgary rescue blues (BSH-look, Chartreux-look, Russian Blue-look, or just generic blue DSH) are domestic cats with whatever genetic profile they happen to have. Adoption fees run $400 to $600 and cover spay or neuter, vaccinations, microchip, deworming, and a vet workup. Zero paperwork verification. Zero breed-claim verification. Zero scam risk. The cat in front of you is the cat in front of you.

For most adopters who want a blue cat for the coat and the temperament rather than show records, the rescue path is the clean answer. If the priorities are blue-grey coat, calm temperament, indoor lifestyle, and a 12 to 17 year companion, every Calgary rescue blue cat delivers exactly that. Lifespan and care needs are similar to the purebred versions. The difference is verifiable ancestry and breed-specific health screening, both of which matter for breeding programs and show registration but rarely change daily ownership.

Several Calgary rescues consistently list blue-coated cats. MEOW Foundation is the largest cat-only rescue in Calgary; their foster homes do detailed temperament and grooming-tolerance assessments. Calgary Humane Society has the highest cat intake volume in the city. AARCS pulls cats from rural Alberta shelters and overflow situations, occasionally including purebred surrenders.

For adopters who specifically want documented breed ancestry, Specialty Purebred Cat Rescue operates across North America and occasionally facilitates cross-border placements of retired breeder cats into Canadian homes. Worth checking if you want a confirmed BSH, Chartreux, or Russian Blue without the breeder route.

For Calgary owners committed to the breeder route for any of the three breeds, establish a relationship with Western Veterinary Specialist & Emergency Centre early for breed-specific health concerns. BSH blood type B confirmation, Chartreux GSD IV monitoring, and HCM screening across all three breeds benefit from specialty veterinary input. The full medical picture for British Shorthair specifically is covered in our BSH health issues guide.