What term describes a trained hawk that is flown with an untrained hawk to teach and build confidence?

The term that describes a trained hawk flown with an untrained hawk to help teach and build confidence is known as a make-hawk. This practice involves using a more experienced bird to support the learning process of a less experienced one, which can provide valuable lessons in flying and hunting. The make-hawk essentially serves as a guide, demonstrating behaviors and actions that the untrained hawk can mimic or learn from, facilitating its development in the field.

The other terms presented do not directly relate to this specific scenario. A master falconer refers to someone who has achieved a high level of expertise in falconry, but it does not specifically address the mentoring role of one hawk towards another. The terms "to mantle" and "to moult" refer to behaviors related to a hawk's physical display and feather shedding, respectively, rather than the training dynamic described in the question.