What does the term 'eyass' refer to?

The term 'eyass' specifically refers to a young raptor that is still in the nest and has not yet fledged, meaning it has not yet learned to fly and leave the nest. This early stage of development is crucial as it is a time when the young bird is reliant on its parents for food and care. The term highlights the importance of understanding different developmental stages in birds of prey, which is critical for those involved in falconry, as it affects the training and handling of these birds. By knowing that 'eyass' refers to a young, nest-bound raptor, falconers can better prepare and adapt their methods for working with birds at different life stages.