The Ca de Bou's history is deeply intertwined with the complex cultural and political history of Mallorca and the Balearic Islands. The breed's ancestors likely arrived on the islands during various periods of conquest and settlement, with the most significant influence coming during the Catalan conquest of Mallorca in 1229 under King James I of Aragon. Historical records suggest that mastiff-type dogs accompanied the conquering forces and were used to control cattle and guard property in the newly acquired territories. These early dogs formed the foundation from which the Ca de Bou would eventually develop, though the breed as we know it today emerged much later.
The breed's development accelerated significantly during the period of British occupation of Menorca and influence throughout the Balearic Islands, which began in 1713 following the Treaty of Utrecht. The British brought their own dogs to the islands, including bulldogs and mastiffs used for blood sports that were popular in Britain at the time. These British dogs were crossed with the local mastiff-type dogs that had been working on Mallorca for centuries. The resulting crosses combined the gripping ability and tenacity of British bulldogs with the larger size and working ability of Iberian mastiffs, creating dogs particularly suited to bull-baiting and dog fighting.
By the mid-18th century, bull-baiting had become a popular spectator sport on Mallorca, particularly in the capital city of Palma. The local dogs developed specifically for this purpose became known as Ca de Bou, literally meaning bull dog in Catalan. These dogs were prized for their courage, tenacity, and powerful build, characteristics still evident in the breed today. They were also valued for guarding estates, protecting livestock, and serving as companions to their owners. The dual purpose of sport and work helped maintain a population of these dogs throughout the island.
The first documented written references to the Ca de Bou by name appear in the early 19th century, though the dogs themselves had existed for generations by this time. Detailed descriptions from this period match the modern breed in many key characteristics, including the massive head, powerful build, and characteristic brindle coloring. The breed remained primarily on Mallorca and other Balearic Islands, with limited export to mainland Spain or other countries. This geographic isolation helped maintain distinct breed type as the dogs were not significantly influenced by crossing with other breeds.
The 19th and early 20th centuries saw the gradual decline of blood sports throughout Europe, including in Spain and the Balearic Islands. As bull-baiting was outlawed and fell out of favor, the primary purpose for which Ca de Bous had been developed disappeared. The breed's numbers declined dramatically as fewer people maintained them. However, the dogs' usefulness as guardians and companions, combined with local pride in the breed as part of Mallorcan heritage, prevented complete extinction. Farm families and rural property owners continued to keep Ca de Bous for protection and companionship.
By the mid-20th century, particularly following World War II, the Ca de Bou had reached critically low numbers and faced potential extinction. Changing agricultural practices, urbanization, and the breed's association with outlawed blood sports contributed to its decline. In the late 1960s and 1970s, a small group of dedicated breed enthusiasts recognized the breed's cultural and historical importance and began systematic efforts to locate remaining purebred dogs and establish preservation breeding programs. These pioneers searched throughout Mallorca and other Balearic Islands, documenting dogs that retained authentic type and establishing a breeding foundation.
The first modern breed standard was drafted in 1932, but it was not until 1963 that the Fédération Cynologique Internationale officially recognized the Ca de Bou, providing international validation and opening opportunities for breeding programs outside Spain. This recognition came through the efforts of Spanish cynological organizations and breed enthusiasts who documented the breed's history and characteristics. The official name Perro de Presa Mallorquín was adopted for FCI registration, though Ca de Bou remains the preferred name in Catalan-speaking regions.
Throughout the 1980s and 1990s, interest in the Ca de Bou grew slowly but steadily. Dedicated breeders in Spain worked to increase population numbers while maintaining authentic type and temperament. The breed began to appear at dog shows throughout Spain and gradually in other European countries. During the 1990s, Ca de Bous were exported to several countries including Poland, Japan, Russia, and the United States, where small breeding programs were established by enthusiasts who appreciated the breed's unique characteristics and historical significance.
The turn of the 21st century saw continued growth in Ca de Bou populations and recognition. Various national kennel clubs granted recognition, including the United Kennel Club in the United States. Breed clubs were established in multiple countries to support breed preservation and provide education about proper care, training, and breeding practices. Despite this progress, the Ca de Bou remains a rare breed worldwide, with estimates suggesting only a few hundred to perhaps two thousand purebred dogs exist globally. This rarity reflects both the breed's limited gene pool following its near-extinction and the ongoing challenges of maintaining a working breed in modern society.
Today's Ca de Bou retains the physical and temperamental characteristics that made it valuable to Mallorcan society for centuries. Modern breeding programs emphasize health, sound temperament, and adherence to breed standards while working to expand the genetic base and prevent problems associated with small populations. The breed has successfully transitioned from its historical role in blood sports to modern functions as guardian, companion, and show dog. Enthusiasts worldwide work to preserve this piece of Mallorcan heritage, ensuring that future generations can appreciate the unique qualities of the Ca de Bou.