During the restriction of one wing, what equipment is used?

The use of a brail is essential when restricting one wing of a bird during falconry. Brails consist of narrow straps that are attached to the bird's body and looped around one of its wings. This helps to keep the wing securely in place while allowing the falconer to maintain control over the bird. Brailing is particularly important because it prevents the bird from flying away while training and reduces the risk of injury.

In contrast, other equipment options such as a braid, beak leash, or wing strap serve different purposes in falconry. A braid typically may refer to a decorative or functional weaving that is not relevant to restricting a wing. A beak leash is used to secure a bird's beak but does not aid in wing restraint, while wing straps can facilitate temporary confinement or control but do not specifically perform the same function as brails in restricting one wing. Thus, the brail is the correct and most effective equipment for this task.