The Spanish Fighting Bull (Toro Bravo): The Animal Behind the Run

What is a Spanish fighting bull?

The Spanish fighting bull, also called the toro bravo or toro de lidia, is a distinct breed of domestic cattle, the Lidia breed, with its own herd book and a breed standard set in Spanish law in 2001.¹ It is lighter and more athletic than beef cattle and has been bred for centuries for one inherited trait: the drive to charge and keep charging.

The breed standard describes an elipométrico animal, meaning lighter than the average for cattle, with marked differences between bulls and cows, a short wide head, large and slightly bulging eyes, small ears and a heavily muscled neck.¹ It is born and raised loose on large open pastures, mostly the oak dehesas of western and southern Spain, and handled as little as possible.

Beef breeds are selected for meat and calm handling. The Lidia breed is selected for behavior: Spain's breeding program, renewed by the Ministry of Agriculture in May 2024, scores four traits in every breeding animal it records: bravura (bravery), fuerza (strength), movilidad (mobility) and fijeza (focus).⁶ The result is a breed unlike any other. In a genetic study of 79 herds, almost 20 percent of all the breed's genetic variation lay between its bloodlines, where most breeds keep their variation inside herds.³

In Spanish: toro bravo fighting bull toro de lidia Lidia bull ganado bravo fighting cattle dehesa oak pasture

The body of the toro bravo

An adult fighting bull stands about 128 cm (4 ft 2 in) at the withers and weighs about 500 kg (1,100 lb) by the breed standard; the bulls that run in Pamplona average 564 kg.^{2, 1, 23}

A measured study of 264 adult animals, aged four to six, from 21 herds and 15 bloodlines, gives the breed's real size: bulls averaged 127.8 cm at the withers and 150.2 cm in body length; cows 116.8 cm and 128.9 cm. The breed is smaller than Spain's other native cattle. Miura and Pablo Romero were the largest bloodlines measured; Navarra and Vega-Villar the smallest.²

Build and presence

The word for a bull's overall presence is trapío: the seriousness of the animal as a whole, judged from its horns, its neck crest and its hindquarters.⁸ Breeders describe build with a precise vocabulary:^{1, 14}

• Elipométrico, eumétrico: lighter than average, or average-framed
• Brevilíneo, mediolíneo, longilíneo: short, medium or long in the body for its height
• Aleonado: lion-like, heavy in front and lighter behind
• Zancudo: long-legged
• Carifosco, astracanado: curly-haired forehead, or curls running down the neck
• Chato, cariavacado, acarnerado: snub-nosed, cow-faced, ram-faced
• Badanudo, degollado: heavy dewlap, or clean throat

In Spanish: morrillo neck crest trapío presence hechuras build pezuña hoof

Bull horns: shapes, colors and names

The fighting bull's standard horn is a short hook: round in section, coming out from the head, then curving forward and slightly up.¹ Both bulls and cows have horns, and the cows' are longer and finer for their size.^{1, 2}

A horn shaped that way, even on both sides and of medium length, is called bien armado, well-formed. Measured bulls averaged 58.5 cm along the outer curve of the horn; cows 57.1 cm.²

Parts of the horn

The base is the cepa, the middle the pala, the solid point the pitón. Young animals carry a cap over the tip, the bellota, which comes away at about three and a half years. The horn grows over a bony core, the clavija ósea, and shows growth rings at the base.⁸

The five horn colors

Every horn shape

Each bloodline tends to its own horn: short and upswept in Navarra, short and forward in Saltillo, long and basket-shaped in Núñez, upswept in Atanasio Fernández, curving in or crown-shaped in Murube, thick at the base in Miura.¹

Many ranches fit fiberglass covers over the horns in a bull's last year at home. A study of 55 bulls aged four to five found lower bone mineral density at the tip of covered horns, a possible weakness.¹⁷

In Spanish: pitón horn tip astifino fine-horned veleto upswept bien armado well-formed mogón blunted

Coat colors: every pelaje and marking

Black is the most common coat of the fighting bull. The breed standard lists ten coat groups, and the breeders' union names 64 coats and markings.^{1, 9}

A coat is written base color first, then markings: negro bragado listón is a black bull with a white belly patch and a stripe along the spine.

• negroblack
• cárdenogrey
• coloradored
• castañochestnut
• tostadodark reddish brown
• melocotónpeach
• jabonerocream
• albahíopale straw
• barrosomuddy
• salinerosalt and red
• sardomixed
• ensabanadowhite

Markings

• Bragado: white belly patch
• Listón: stripe of another color along the spine
• Chorreado: vertical streaks down the flanks
• Burraco: black with many white splashes
• Girón: large white patch on the flank
• Lucero: white star on the forehead
• Calcetero: white socks
• Ojinegro: black around the eyes
• Bociblanco: white muzzle
• Entrepelado: white hairs through the coat

All 69 coat and marking terms are in the glossary. Every bull on our year pages carries its coat as printed in the Pamplona press of the day.⁹

In Spanish: pelaje coat negro black cárdeno grey berrendo pied bragado white-bellied

How a bull sees, and why red does not matter

A fighting bull sees about 135 degrees with each eye but only about 20 degrees straight ahead with both eyes together, and it is red-green color blind.^{10, 11}

The best measurements of the fighting bull's own eyes come from R. Martín Roldán, a professor of anatomy in Madrid, published in 1976:¹⁰

• Each eye covers about 135 degrees.
• Both eyes overlap in only about 20 degrees straight ahead, reaching about 60 degrees downward. That narrow zone is where the bull judges distance best.
• Behind the bull is a blind area of about 108 to 110 degrees.
• Right in front of the muzzle is a blind cone, about 90 to 125 cm long, that neither eye covers.
• The retina has few cones and many rods: good in low light, weak in color. The bull is farsighted.

Grandin's work on cattle puts the total field of view above 300 degrees, and notes that cattle judge depth poorly with their heads up, which is why they stop and lower the head to look.²⁷ Martín Roldán gave no method or sample, so his figures are one anatomist's measurements; they match the general picture.

Do bulls hate red?

No. Cattle are dichromats: two types of color receptor instead of three, so they are red-green color blind. They see color less intensely than people, and red does not stand out to them.^{11, 12} What draws a bull is movement and strong contrast.

In Spanish: visión binocular two-eye vision zona ciega blind area dicromático dichromatic

How big and how fast is a fighting bull?

The bulls that ran in Pamplona from 2000 to 2026 weighed 564 kg (1,243 lb) on average, from 460 to 695 kg, and the fastest run on record averaged about 24 km/h (15 mph) over the whole 848.6 meter route.²³

The breed standard gives about 500 kg for an adult bull and 300 kg for a cow.¹ Pamplona's bulls are four to six years old and heavier. Their weight has not climbed: yearly averages have stayed between 538 kg (2022) and 593 kg (2007).²³

On the ranch, a calf weighs about 90 kg at weaning at seven months, about 300 kg at two years and 367 kg at thirty months, in figures from one Madrid ranch.¹⁵

How fast can a bull run?

No reliable measurement of a fighting bull's top sprint speed has been published that we can cite. What we can measure is the run. The fastest encierro on record, Miura in 2015, covered the 848.6 meter route in 2 minutes 5 seconds: about 6.8 meters a second, or 24 km/h, uphill stretch and sharp turn included. Measurements of the route differ by a few dozen meters depending on where they start and end. A typical run takes two to four minutes. See Bull Speed in the Encierro for section times.

Left alone, bulls move little. Lidia cows fitted with GPS collars walked about 3.1 km a day on a home range of about 56 hectares, most active around dawn.¹³

In Spanish: peso weight kilos kilograms velocidad speed

Temperament: bravo, noble, encastado

A fighting bull is bred to be bravo: to charge and keep charging. On its home pasture the breed standard calls it "generally calm" and very territorial.^{1, 6}

Ranchers who raise cattle for street events value bravery, spirit, mobility and quick reactions (prontitud), and, for the street, sharpness (listeza), agility, getting back up and going on (reponerse) and durability.¹⁴

Why are bulls aggressive?

Three reasons. Selection: for centuries breeders have kept the mothers and fathers that charge hardest, and the breeding program still scores bravery.⁶ Territory: the breed standard calls them very territorial, calm at home and irritable away from it.¹ Rank: bulls fight each other for position in the herd, sometimes hard enough to injure or kill.²⁰

In Spanish: bravo brave noble noble manso tame suelto loose bull

Where the breed came from

Every fighting bull alive today descends from a handful of founding castes, the castas fundacionales, formed between the Middle Ages and the mid-1800s; most modern herds trace to the Vistahermosa caste of about 1774.^{1, 3}

1. 1388 Two bulls are sent from Navarra to Pamplona. Navarra's wild cattle of the Bardenas Reales and the Ebro valley form the Navarra caste.³
2. 16th century Morucha Castellana cattle at El Raso de Portillo, Valladolid; extinct in pure form in the 1800s.³
3. 1598 to about 1650 The Jijona caste (Villarrubia de los Ojos) and the Toros de la Tierra (Colmenar Viejo).³
4. 1690 Joaquín Antonio Beaumont, Marqués de Santacara, the first organized Navarra breeder with continuity; his bulls run in Pamplona that year.³
5. About 1740 The Cabrera caste, Utrera, from the herds of the Cartuja de Jerez.³
6. By 1755 The Vazqueña caste, Seville; its best herd is bought by King Fernando VII in 1831.³
7. 1762 to 1795 The Gallardo caste, El Puerto de Santa María.³
8. About 1774 The Vistahermosa caste, Dos Hermanas, the source of most herds today.³
9. 1850 to 1852 Juan Miura buys Cabrera cattle: the start of the Miura line.³

Del Campo's records of Pamplona's bulls from 1800 to 1843 describe the Navarra animals as mostly red, dark red and chestnut, small, agile, good jumpers and sharp-horned.²⁴ A Navarra professor of animal production summed them up as "small in size and big in bravery."⁴

Is the toro bravo an aurochs?

No, though it is often called the closest living relative of the aurochs, the wild ox of prehistoric Europe. A study of the mitochondrial DNA of 527 Lidia animals from 29 lineages found diversity higher than most European breeds, about 17 percent of an African lineage, and closer links to prehistoric Iberian and Italian aurochs than to British ones.⁵ That makes it an old, genetically distinct Iberian breed, not an aurochs.

In Spanish: casta fundacional founding caste uro aurochs

Bloodlines: what an encaste is

A fighting bull bloodline is called an encaste: a group of herds of known origin, kept apart from other bloodlines for at least 30 years and distinct in body and behavior.³

A branch inside an encaste is a línea. A single ranch with its own brand is a ganadería. The word casta means ancestry, "also used of animals,"²¹ and breeders also use it for the inherited fire of a bull.

Sources: ^{1, 2}

In Spanish: encaste bloodline línea line ganadería ranch hierro brand

The bulls of Pamplona, by bloodline

From 2000 to 2026, the Domecq and Núñez family supplied 130 of Pamplona's 200 encierros (65 percent), and Miura ran every year.²³

• Domecq and Núñez family: 130 runs, from ranches such as Cebada Gago, Jandilla, Fuente Ymbro, Victoriano del Río, Núñez del Cuvillo, Torrestrella and La Palmosilla.
• Miura: the only Cabrera line still running in Pamplona; 25 runs since 2000 and a run every fiesta since at least 1980.
• Atanasio Fernández and Conde de la Corte lines (Dolores Aguirre, Puerto de San Lorenzo, Valdefresno, Conde de la Corte): 18 runs.
• Albaserrada (José Escolar, Adolfo Martín, Victorino Martín): 16 runs. José Escolar has run every year since 2015.

Encierro's database records every run and every bull from 2000 to 2026, each fact sourced to the press of the day.²³ Each year's ranches, with every bull's name, weight and coat, are on our year pages, such as San Fermín 2026.

How the toro bravo is bred, raised and fed

Fighting bulls are born in spring, weaned and branded at about seven months, and raised loose on pasture for four to six years; breeding animals are chosen by pedigree, build and a temperament test.^{15, 6}

The ranch year

1. Jan to AprCalving, mid-January to mid-April
2. Apr to AugBreeding: each sire runs free with 20 to 40 cows
3. Sep to OctWeaning at about seven months, and branding (herradero)
4. Age 2Young cows tested for temperament; bull candidates chosen

One Madrid ranch, studied in 1990.¹⁵ On that ranch about 85 percent of cows calved each year, and 15 to 20 percent of young females were kept each year to replace older cows.

The mothers

A heifer is not bred before two. A well-fed cow stays productive to 16 to 18 years, giving about 4 liters of milk a day to her calf until weaning.¹⁶ A bull's name usually comes from its mother's name.²²

How breeding animals are chosen

Males are chosen first by build, then by pedigree, then by a test.¹⁵ Spain's breeding program turns pedigrees and test scores into a genetic value for bravery, strength, mobility and focus, with an index average of 100; animals above 100 are recorded as improvers. It also works to keep the genetic variety of the smaller bloodlines, and five breeders' associations keep the herd book.⁶

Feeding

Pasture is the base of the diet. Calves live on milk for four to six weeks, then get hay and a protein supplement in feeders their mothers cannot reach; minerals at that age matter for horn growth, and "deficiencies at this stage can last for life."¹⁶ Cows graze in spring and autumn and eat hay in winter, about 1,350 kg a cow a year on the Madrid ranch.¹⁵ In a bull's last months at home, feeding guidance sets a limit of 180 days and no more than 500 g of gain a day, at least 8 kg of feed a day with at least 20 percent forage, and long feeders so dominant bulls cannot keep the others away.¹⁶

Exercise

Ranchers keep their bulls moving: food and water at opposite ends of a pasture, and runs on an exercise track, the corredero, with their brothers and the steers around them. One ranch's track is about 1.5 km long. At Las Monjas, near Lora del Río in Seville, the bulls swim across a lake behind the steers. Tired bulls also fight less when groups are put together.¹⁹

Land and health

The breeders' union reported 280,450 hectares of ranch land in 2015, about 800 hectares per ranch, mostly pasture and dehesa (the union's own figures).²⁶ Because the herds live loose and are hard to handle, tuberculosis is harder to clear from them than from other cattle; its prevalence in Lidia herds is about ten times that in dairy herds.¹⁸

In Spanish: semental breeding bull vaca de vientre breeding cow herradero branding corredero exercise track

Inside two Pamplona ranches

Before the 2008 fiesta, while researching what became the documentary Chasing Red, Dennis Clancey visited two ranches that run regularly in Pamplona.

Cebada Gago, at La Zorrera near Medina Sidonia in Cádiz, has sent bulls to Pamplona 36 times since 1985. Fuente Ymbro, at San José del Valle in Cádiz, was founded in 1996 from Jandilla stock and has run 19 times since 2005.²³

"I visited with my good friend Jorge, who had arranged the visits. We were able to observe the selection of the cows and the feeding. We spent time near the bulls, though at a respectful distance, observing and filming. They had already sent their bulls to Pamplona, right before the fiesta."

Dennis Clancey, founder of Encierro

Bull or steer: what is the difference?

A bull is an intact male; a steer is a castrated male. The steers that lead fighting bulls, the cabestros or mansos, are bigger, calmer and wear a cowbell.

Cabestros are usually castrated beef-breed males, often of the white-and-red or white-and-black Berrenda breeds, heavier-boned than the bulls, with long horns and a large bell on a leather collar. In Pamplona they run beside the bulls to keep the herd together and lead it to the bullring. More in The Cabestros: the steers that guide the bulls.

In Spanish: cabestro lead steer manso tame, steer buey ox cencerro cowbell

Life stages and lifespan

A fighting bull is a becerro under one year, an añojo at one, an eral at two, a utrero at three and a toro at four and over; the bulls that run in Pamplona are four to six.²²

1. Becerrocalf, under 1
2. Añojoyearling, 1
3. Eral2
4. Utrero3
5. Torobull, 4 and over

Breeding cows stay productive to 16 to 18 years.¹⁶ We have not found a reliable published figure for the natural lifespan of a Lidia bull, and will add one when we do.

Myths and facts about fighting bulls

Glossary: fighting bull terms in Spanish and English

Every Spanish word on this page, with its English meaning: 197 terms on horns, body, coats, temperament, eyesight, ages and ranching.

Sources: Real Decreto 60/2001; Sagaón Cuetos (1996); Real Unión de Criadores de Toros de Lidia; Real Academia Española.^{1, 8, 9, 21} Festival words are in our running of the bulls vocabulary.

Frequently asked questions

Related reading

• Bull behavior in the encierro
• Bull speed in the encierro
• The suelto: a bull alone
• The cabestros
• What to do if you fall
• San Fermín by year: every bull

Sources

1. Spain. Real Decreto 60/2001, de 26 de enero, sobre prototipo racial de la raza bovina de lidia. BOE no. 38, February 13, 2001. boe.es ↩↩↩
2. Lomillos, J. M. and Alonso, M. E. (2020). Morphometric Characterization of the Lidia Cattle Breed. Animals 10(7): 1180. doi:10.3390/ani10071180 ↩↩↩
3. Cañón, J. and Fernández, J. (2012). Análisis genético; Análisis histórico de las castas fundacionales. Universidad Complutense de Madrid and Unión de Criadores de Toros de Lidia. ucm.es ↩↩↩
4. Purroy Unanua, A. (2020). Evolución del toro de lidia: el toro actual. Universidad Pública de Navarra. academica-e.unavarra.es ↩
5. Cortés, O. et al. (2008). Ancestral matrilineages and mitochondrial DNA diversity of the Lidia cattle breed. Animal Genetics 39(6): 649 to 654. ↩↩
6. Ministerio de Agricultura, Pesca y Alimentación (May 31, 2024). Programa de Cría de la Raza Bovina Lidia. mapa.gob.es ↩↩↩
7. Encierro.com (2026). What to Do If You Fall in the Running of the Bulls. encierro.com ↩
8. Sagaón Cuetos, S. M. (1996). Descripción estereotáxica de los cuernos y su adaptación al lenguaje del exterior del toro de lidia. Thesis, UNAM. unam.mx ↩↩↩
9. Real Unión de Criadores de Toros de Lidia. Pelajes y particularidades. ganaderosdebravo.es ↩↩↩
10. Martín Roldán, R. (1976). Fundamentos anatomo-funcionales de la visión en el Toro de Lidia. Colegio Oficial de Veterinarios de Sevilla; reprinted by AVATMA, 2015. avatma.org ↩↩↩
11. Roland, D. (updated October 15, 2025). Decoding Dairy Cattle Behavior for Safe Handling. Penn State Extension. extension.psu.edu ↩↩↩
12. Jacobs, G. H., Deegan, J. F. and Neitz, J. (1998). Photopigment basis for dichromatic color vision in cows, goats, and sheep. Visual Neuroscience 15(3). ↩↩
13. Lomillos Pérez, J. M. et al. (2017). Monitoring lidia cattle with GPS-GPRS technology. Veterinaria México OA 4(4). doi:10.21753/vmoa.4.4.405 ↩
14. Lomillos Pérez, J. M., Alvite, A. and San José, J. (2024). Criterios de selección etológica y morfológica del ganado de lidia para festejos populares. Anales de Veterinaria de Murcia 38. revistas.um.es ↩↩
15. González de Chabarri, E. and Aguado Ramo, J. A. (1990). El ganado de Lidia (1): aspectos productivos y económicos. Mundo Ganadero 4: 69 to 71. mapa.gob.es ↩↩↩
16. Bartolomé Rodríguez, D. J. (May 12, 2014). Alimentación de la vacada de lidia. Engormix. engormix.com ↩↩↩
17. Lomillos Pérez, J. M., Gonzalo, J. M. and Alonso, M. E. (2021). Análisis de la estructura del cuerno del toro de lidia mediante análisis de imagen: efecto del enfundado. Abanico Agroforestal 3. doi:10.37114/abaagrof/2021.2 ↩
18. Lomillos, J. M., Fernández, J. and Alonso, M. E. (2018). Abordaje multidisciplinar de la infección de tuberculosis en una explotación de ganado de lidia. Revista Complutense de Ciencias Veterinarias 12(1). doi:10.5209/RCCV.60466 ↩
19. López Rioboo, P. (January 1, 2023). La curiosa pero eficaz forma que la ganadería de Las Monjas tiene para entrenar sus toros. Cultoro. cultoro.es ↩
20. El Debate (February 14, 2026). Un ganadero demuestra la bravura de los toros de lidia durante su cría. eldebate.com ↩
21. Real Academia Española. Diccionario de la lengua española: casta, bravo, manso. dle.rae.es ↩↩↩
22. Sánchez Belda, A. (1950). Reseña de animales. Hojas Divulgadoras 12-50, Ministerio de Agricultura. ↩↩
23. Encierro.com. Pamplona Encierro Bulls Database, 2000 to 2026: every run and every bull, with a source for each fact. Data as of November 2026. ↩↩↩
24. Del Campo, L. (1968). El Encierro de los Toros; and Toros en Pamplona, 1800 to 1843. ↩
25. Cabrera Bonet, R. (2011). Sobre el toro en la obra de José Bergamín. Revista de Estudios Taurinos 29. ↩
26. Unión de Criadores de Toros de Lidia report, as published by Agronews Castilla y León, June 10, 2015. ↩
27. Grandin, T. Behavioral principles of livestock handling (updated 2014 and 2016). grandin.com ↩
28. Encierro.com (2026). Recortes in Pamplona: the vaquillas after the encierro. encierro.com ↩
29. Encierro.com (2026). Running of the Bulls Deaths and Injuries, 2013 to 2026 (no published study counts injuries by cause). encierro.com ↩

How to cite this page

Clancey, D. (2026, November 7). The Spanish fighting bull (toro bravo): The animal behind the run. Encierro.com. https://encierro.com/spanish-fighting-bull/

Clancey, Dennis. "The Spanish Fighting Bull (Toro Bravo): The Animal Behind the Run." Encierro.com, 7 Nov. 2026, encierro.com/spanish-fighting-bull/.

Clancey, Dennis. "The Spanish Fighting Bull (Toro Bravo): The Animal Behind the Run." Encierro.com. Last modified November 7, 2026. https://encierro.com/spanish-fighting-bull/.

{{cite web |last=Clancey |first=Dennis |title=The Spanish Fighting Bull (Toro Bravo): The Animal Behind the Run |website=Encierro.com |date=2026-11-07 |url=https://encierro.com/spanish-fighting-bull/ |access-date=}}

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