A bird that is "over threshold" is likely to do which of the following?

When a bird is described as being "over threshold," it indicates that the bird is experiencing extreme stress or fear beyond what it can tolerate. In this state, a bird is less likely to engage in typical behaviors that signal comfort and willingness to participate in activities such as eating. Instead of consuming food that it would normally find desirable, the heightened stress response can lead to the bird neglecting to eat altogether as its focus shifts to its immediate survival instincts.

In a state of distress, a bird might not only stop eating but could also exhibit signs of anxiety or fear, compelling it to either remain in a defensive posture or seek an exit from the situation. While some birds may attempt to interact with staff, solicitation of attention typically occurs when a bird feels more secure. Learning new behaviors generally requires a calm and attentive state, which would be unattainable if the bird is over threshold. Thus, the overwhelming stress can profoundly affect its basic behaviors, including eating.