Perro de Presa Mallorquín

The Perro de Presa Mallorquín, known in Catalan as the Ca de Bou ("bull dog"), is a medium-sized mastiff-type breed from the island of Mallorca. Its names encode what it was actually bred to do: presa means a dog that grips and holds, and its documented history is one of gripping bulls — in the fighting arena, and for the island's butchers' guild, which used it to restrain cattle at slaughter. After blood sports were banned it became a property and farm watchdog, and the FCI officially classifies it as a Watch and Guard Dog.¹ It is an honest boundary case for this encyclopedia: it is a genuine property, estate and personal guardian, but there is no evidence it was ever a flock-bonding livestock guardian in the manner of the Spanish Mastiff or Pyrenean Mastiff. Mallorca's own herding and stock dog is a different breed, the Ca de Bestiar.

I History & origins Documented

Breed histories trace mastiff-type dogs reaching the Balearics around 1230 with the Aragonese conquest of Mallorca, and later crossing with British fighting and guard dogs brought during the 18th-century British occupation — an origin story the FCI standard repeats but which is not confirmed by primary records.¹ What is better documented is the breed's blood-sport identity: bull-baiting and dog fighting were its defining uses, and the Catalan name Ca de Bou records exactly that. When bull-baiting (1883) and dog fighting (1940) were banned, the breed collapsed and was considered near-extinct after World War II. A recovery effort began in the 1980s using surviving Ca de Bou specimens crossed with the related Ca de Bestiar, with some English Bulldog added to shorten the muzzle. The modern breed is therefore a recovered and partly reconstructed one, not an unbroken ancient lineage.

II Physical & conformation

Recorded coat is Short & rough. A full physical profile — coat structure and care, climate tolerance, skeletal conformation and sexual dimorphism — is not yet collected for this breed.

III Working role Documented

The breed's documented roles, in order of evidence strength, are catch work and blood sports, then property guarding. Its strongest agricultural role was as a butchers' dog — from the 13th century the Mallorcan butchers' guild used it to grip and restrain cattle at slaughter, exploiting its jaw strength and courage. Bull-baiting and dog fighting were its defining historical uses. The FCI standard's own history frames its guardian side around property and people — "watch and guard dogs needed in harbours and coastal settlements as a protection against pirates and robbers" — and gives its utilization simply as "Watch and Guard Dog".¹ Today it is chiefly a property guardian and family companion. What the record does not support is any flock-bonding livestock-guardian role: there is no documented sheep or goat guarding, no transhumance, and no predator-defence tradition. Individual dogs kept on farms may live alongside stock, but this is incidental and requires careful raising and management given the breed's catch-dog ancestry — it is not a breed-level trait.

IV Behavioral profile Qualitative

The trait scores below are qualitative descriptions drawn from the FCI standard and breed literature — not measured survey scores. Crucially, the breed was selected for the opposite of the livestock-guardian profile: for grip and prey drive, territorial defence and combat tenacity, rather than for calm tolerance of stock and independent flock bonding. Traits without a documented assessment are shown as gaps rather than guessed; "Flock bonding" is left blank because it is documented as absent, not present at some level.

V Health Qualitative

No peer-reviewed, breed-specific health studies of the Ca de Bou were found. The concerns below come from breed-club and pet-site sources plus proxy evidence from other large molossoid breeds, so they should be read as plausible risks rather than measured prevalence:

• Orthopedic conditions — hip and elbow dysplasia and patellar luxation are commonly cited, consistent with the large-molossoid risk profile; no breed-specific screening statistics (e.g. OFA) are available given the breed's rarity.
• Eye conditions — entropion, ectropion and cherry eye are frequently mentioned, plausible given the molossoid head.
• Population-bottleneck risk — recovery from a very small 1980s founder base, and the lowest allelic diversity of the Balearic breeds studied, raise the risk of inbreeding-related disorders.²

The breed has a moderately shortened muzzle (about a 1:3 muzzle-to-skull ratio) but is not an extreme brachycephalic; BOAS risk is lower than in Bulldogs or Pugs, though heat and exercise tolerance still deserve monitoring. As a deep-bodied large breed it also carries the usual bloat (GDV) risk. Reported lifespan is about 10 to 12 years.

VI DNA & origin research Peer-reviewed

Unusually for a rare breed, the Ca de Bou has been included in peer-reviewed conservation-genetics work from the University of Córdoba / IRFAP research group, using microsatellite markers across the native Balearic breeds.²

VII Related & compared breeds Documented

The most important boundary for this encyclopedia is that the Ca de Bou is not Mallorca's flock and herding dog — that is the separate Ca de Bestiar, which is genetically its closest relative and was used in its recovery. It sits in the broader Spanish presa (catch-dog) and molossoid tradition alongside these breeds:

VIII Conservation & status Documented

The breed is formally tracked as at risk in Spain. Its status reflects a small, recovered population concentrated on one island:

IX Setting the record straight