A creance is defined as what type of item in the context of falconry?

In falconry, a creance is a strong line used for training birds of prey. It is typically attached to the bird’s jess (the strap that is fastened to the bird’s leg), allowing the falconer to control the bird’s distance while it learns to fly and hunt. The purpose of the creance is to provide a safe way for the falconer to let the bird exercise and develop its flying skills without the risk of it flying away or escaping unpredictably. This tool is essential for establishing a reliable recall and for building the bird's confidence in its flying abilities within a controlled environment. The strength of the creance is important, as it needs to withstand the strength of the bird's flight while still allowing some freedom for movement.