Horses That Weave, Box Walk, Crib Bite or Windsuck: Understanding & Managing

Owning a horse or pony that weaves, box-walks, crib-bites or wind-sucks can be challenging, especially for those unfamiliar with these behaviours. These repetitive actions not only cause distress to owners due to their noise and visual disruption but also reduce the horse's value and damage stable facilities. Many livery yards refuse to house horses exhibiting such behaviours, traditionally fearing others might mimic them; however, modern research indicates this is unlikely. Most importantly, these behaviours often accompany various health concerns for the affected horse.

Vices or Stereotypies?

Historically labelled as 'vices', cribbing, weaving, box-walking, and wind-sucking are better understood as stereotypic behaviours—repeated, functionless actions linked to stress rather than intentional misbehaviour. These patterns commonly arise from deprivation of natural behaviours such as regular grazing, sufficient exercise, and social interaction, which are essential to a horse's well-being.

Such behaviours manifest as coping mechanisms for stressors typically linked to confinement and isolation, where horses cannot perform their innate behaviour patterns.

Displacement Activities: The Root of Stress Responses

When a horse is unable to express natural behaviour due to confinement, the resulting frustration may trigger displacement activities such as weaving. For example, a stabled horse hearing others approach might instinctively try to join them for social contact but, prevented by the stable door, may start weaving as an outlet for stress.

It's important not to isolate horses as a solution, as the underlying cause is the deprivation itself, and removing stimuli merely masks the problem without resolution.

Learning by Association: How Behaviours Become Reinforced

Once a stereotypy begins, horses can associate a growing number of environmental stimuli with the behaviour, increasing its frequency. For instance, a horse weaving when hearing approaching horses might also begin weaving upon hearing people or feed-related cues because these have become linked through repeated associations and reinforcement.

Such persistent behaviours become 'behavioural scars', continuing even when initial causes, like social isolation, are addressed. Attempts to forcibly suppress these behaviours often worsen stress rather than alleviate it.

Locomotor Stereotypies: Weaving and Box-Walking

Weaving involves rhythmic swaying of the head and neck while shifting weight between forelegs, sometimes resembling a dance. This often occurs in the stable but can occasionally happen in fields near gates. Interventions like anti-weaving bars may limit neck motion but usually don't stop the behaviour and might exacerbate the sense of confinement.

Stable mirrors can reduce weaving by simulating social contact, and prolonged turnout with regular exercise helps decrease stress. While weaving may seem harmless, persistent action can strain joints, cause abnormal hoof wear, and wear down stable floors.

Box-walking is a repetitive pacing within the stable that consumes time meant for rest and feeding. It is also linked with stress arising from interrupted natural behaviours. Increased foraging opportunities and exercise can reduce pacing. Providing toys such as feed balls and scattering forage in intervals may help mimic grazing and slow the behaviour.

Box-walkers commonly struggle to maintain healthy weight and risk ligament and tendon damage, making management changes vital.

Oral Stereotypies: Crib-biting and Wind-sucking

Crib-biting involves the horse grasping a solid object and suckling air while arching the neck. Wind-sucking mimics this action without grasping an object. Formerly thought to involve swallowing air, recent findings suggest air is quickly expelled, and these behaviours likely relate to gastrointestinal discomfort such as colic and ulcers.

Oral stereotypies appear to help relieve abdominal pain and stress by releasing endorphins, and may even reduce stomach acid levels. They often correlate to diets high in starch and sugars but low in fibre, so concentrates should be limited for affected horses.

Management should prioritise unlimited grazing and free access to hay, alongside dietary antacids after feeding. Punitive approaches like cribbing collars or electric fences are discouraged as they heighten stress and worsen behaviours.

Crib-biting can cause tooth wear and muscle issues, impacting feeding efficiency. Preventing the behaviour altogether generally causes more stress, so adjusting management and diet remains the preferred strategy.

Key Management Strategies for Stereotypic Behaviours

• Increase turnout time: Regular pasture access promotes natural exercise and socialisation.
• Allow social contact: Horses are social creatures; seeing and touching others reduces stress.
• Provide environmental enrichment: Stable toys, mirrors, and scattered forage encourage engagement.
• Improve diet: Emphasise high-fibre forage and limit starches and sugars to reduce gastrointestinal issues.
• Avoid punitive measures: These increase anxiety and may worsen stereotypic behaviours.

By understanding that weaving, box-walking, crib-biting, and wind-sucking are stress responses, owners can take compassionate, evidence-based approaches to improve their horse's welfare and quality of life.

For those looking to find a horse for sale, it’s important to consider these behaviours during selection and ensure management practices support natural equine wellbeing to prevent these issues.