What is a sign that an eyass is not yet ready for free flight?

The indication that an eyass is not yet ready for free flight is observed through its hesitation to respond to the lure. This behavior reflects the bird's confidence and readiness to engage in hunting and flying activities. When an eyass shows reluctance or hesitation, it suggests that it may not have fully developed the necessary skills, motivation, or physical readiness to fly independently and respond effectively in a free flight scenario. A strong response to the lure is an essential part of training, as it demonstrates the bird’s willingness to engage and its understanding of chasing and retrieving prey.

Looking at the other options, an eyass that approaches the falconer quickly may indicate a good bond and relationship, as it's seeking interaction and reassurance. Playful behavior can often be a sign of a healthy and stimulated bird, implying that it is comfortable in its environment. Additionally, displaying a desire to fly away from the sponsor might suggest a level of independence, which could mean that the eyass is more comfortable with its flying abilities than if it were hesitant. Therefore, these behaviors do not indicate a lack of readiness for free flight, which is why hesitation to respond to the lure stands out as the most critical sign of an eyass's preparedness.