Ca de Bou means bull dog. According to the FCI standard, the name dates to the early 18th century, when English residents of the Balearic Islands sought dogs for the bull-baiting popular at the time. What remains is a compact, calm watchdog, considerably lighter than the large mastiffs.
| FCI | Group 2 (Pinscher and Schnauzer, Molossoid and Swiss Mountain Dogs), Section 2.1 Molossoid, Mastiff type, Standard No. 249, without working trial |
|---|---|
| Country of origin | Spain |
| Size (height at the withers) | males 55 to 58 cm, females 52 to 55 cm |
| Weight | males 35 to 38 kg, females 30 to 34 kg |
| Life expectancy | no reliable study figure found (N/A) |
| Coat | short and rough to the touch |
| Colours in the standard | brindle, fawn and black; white patches on the front paws, chest and muzzle up to 30 percent; black mask allowed |
From King James to Barcelona
The standard tells of the mastiff of the Iberian Peninsula, brought to the Balearic Islands with King James I around 1230. After the Peace of Utrecht, the English crossed in their own fighting and guard dogs. A Spanish studbook from 1923 mentions the breed; the first official entry followed in 1928, with an award at the Barcelona show a year later. A neighbour from the same island is the Majorca Shepherd Dog.
Good-natured indoors, watchful at the gate
Calm by nature, courageous and brave when needed, sociable with people and loyal to their person: that is the standard’s account of temperament. It calls these dogs unsurpassed at watching and guarding. Channel that protective readiness through early familiarisation with visitors, neighbours and tradespeople. Authorities in some German federal states classify the breed as subject to special restrictions; ask your local authority which rules apply before deciding.
A broad head, a short muzzle
Particularly in males, the head circumference should exceed the chest circumference at the withers; the muzzle measures one third of the skull length. The required undershot bite must not exceed one centimetre, while a scissor bite is a serious fault. The rose ears remain natural; cropped ears or docked tails lead to disqualification.
A small gene pool
Among six endangered Balearic breeds, the Ca de Bou had the fewest alleles (5.05 per marker) and the lowest heterozygosity in a genetic analysis (Alanzor Puente et al. 2024). The recorded population comprised 243 dogs (Puente et al. 2024). Lifespan and disease figures are lacking; the large UK analysis excludes the breed (McMillan et al. 2024). Ask about the inbreeding coefficient and hip results.
Grooming and exercise
The short, rough coat is quickly brushed. Their typical gait is a trot, making steady walks, searching games and obedience work with clear rules suitable activities.
Who they suit
Experienced people wanting an alert, affectionate molossoid of moderate weight, who accept the waiting time that comes with a rare breed.
Who should choose another dog
Anyone who must cross a crowded city centre daily, likes letting dogs run in a pack or wants a puppy quickly is unlikely to be happy with this breed.
The breed quiz helps you assess how well a watchful molossoid fits your everyday life; our book “Which Dog REALLY Suits You?” (book in German) offers detailed guidance. For the first weeks, there is the free Puppy Starter Pack. And if your Ca de Bou is already home: dog portraits from your own photo, also available as a poster in a wooden frame.
Further reading
- Boxer: forever young, with a high cancer risk
- Puppy checklist: essentials and the first 3 days
- Dog tax in Germany in 2027: what your dog costs in your town
Sources, accessed on 20.10.2026: FCI Standard No. 249 Perro Dogo Mallorquín, Ca de Bou (Mallorca-Dogge) (fci.be, German version dated 20.05.1997, valid original standard published on 11.12.1996); Alanzor Puente JM et al., Integrated Discriminant Evaluation of Molecular Genetic Markers and Genetic Diversity Parameters of Endangered Balearic Dog Breeds, Int J Mol Sci 2024; Puente JMA et al., The Crucial Role of Breeder and Dog Owners Associations in Safeguarding Genetic Heritage of Endangered Balearic Dog Breeds, Animals 2024; McMillan KM et al., Longevity of companion dog breeds: those at risk from early death, Scientific Reports 2024.
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