Bucking

Bucking is a movement performed by an animal in which it lowers its head and raises its hindquarters into the air while kicking out with the hind legs.

The classical dressage movement known as the Capriole is also very similar to the low buck done by a horse when it kicks out with both hind legs.

Bucking in horses, especially if triggered by fear, pain or excitement, is generally a minor disobedience, unless it is strong enough to unseat the rider, at which point it is a dangerous act.

[6] If poor riding is the cause, special attention and improvement to the rider’s balance and aids will help eliminate confusion and thus prevent the behavior.

[6] If ill-fitting equipment is the problem, a refit of the tack causing the discomfort is necessary to not only stop the bucking, but also to prevent further injuries that may arise due to poor fit.

[8] Usually a horse gives some warning that it is about to buck by dropping its head, slowing down or stopping, and excessively rounding up its back.

[6] Bucking is sometimes seen during the early stages of horse training, often caused by the uncomfortable new feeling of a piece of saddlery, which will usually reside after habituation.

[4] If poor riding is the case, special attention and improvement to the rider’s balance, and commands will help to eliminate the confusion, and thus prevent the behavior.

A rodeo horse, bucking.
A loose horse may buck due to aggression or fear, as the very high kick of this horse suggests
Bucking is a normal behavior for a horse with an overabundance of energy, and in a loose horse, may simply be playful behavior, as here
Horse bucking as an act of disobedience or discomfort
Some horses are chosen for use in rodeos, due to their habitual or powerful bucking ability.