What is a Yagi?

A Yagi is a hand-held telemetry antenna, which is commonly used in falconry to track and locate birds equipped with telemetry devices. This type of antenna is well-designed for directionality, allowing users to determine the precise location of their birds even from a distance. The effectiveness of a Yagi antenna in focusing on specific signals makes it invaluable during the training and monitoring of raptors, ensuring that falconers can maintain communication with their birds and ensure their safety.

The other options presented do not relate to falconry or telemetry equipment. For instance, the option referencing a hood is unrelated to tracking technology. Similarly, a glove without fingersleeves has no relevance to avian activities, and a juvenile saker falcon, while being a species of bird that might be of interest to falconers, does not pertain to the question of what a Yagi is. Thus, the focus on telemetry in the correct choice aligns directly with the practices used in the field of falconry, illustrating the significance of accurate signal reception in bird management.