When securing jesses to a bird, what is typically attached to the tarsi?

The typical practice in falconry when securing jesses to a bird involves attaching bells to the tarsi, which are the lower legs of the bird. Bells serve multiple purposes in falconry. They help the falconer keep track of the bird's location, especially when the bird is flying or in flight. The sound of the bells not only provides auditory cues that can indicate the bird's movements but also can help in the training process.

The other options, while they may have specific uses in falconry, are not commonly attached to the tarsi. A glove is used by the falconer to handle the bird safely. A transmitter is for tracking the bird's location during flights but is typically added to the bird's harness, not directly to the tarsi. Weights are sometimes used for adjusting the weight of a bird during training or hunting to ensure optimal performance, but they are also not usually affixed to the tarsi as a primary attachment. Bell placement on the tarsi allows for effective monitoring of the bird while ensuring it is comfortable and secure.