Which method is commonly used to attach bells to a bird's legs?

The method commonly used to attach bells to a bird's legs is through the use of a bewit. Bewits are small, usually made of leather or other soft materials, and are designed to secure items, such as bells, to the legs of a bird. The bewit fits around the leg and allows for the bell to be securely attached without restricting the bird's movement.

This method is preferred because it allows bells to be easily fastened and removed as needed, aiding in the training and hunting process. The bells serve a purpose in both tracking the bird's location and in providing auditory feedback during training exercises.

Other methods, such as using jesses, swivels, or leashes, serve different functions. While jesses are primarily used for tethering and providing control over a falcon, they are not specifically designed for attaching bells directly. Swivels provide a mechanism to prevent twisting of the leash, enhancing the bird's ability to move without entanglement, and leashes are more about control than attachment of accessories like bells.