We discuss why I think the bird might have been startled. We consider the behavior of other birds we have seen that morning; how they pop up from the ground and land on a tree limb above us, but do not flee before us as we walk. They are used to people in this area. They do not seem scared of us, just cautious.  I mention that my interpretation has much of myself in it. This is new; this kind of tracking is deep. Much deeper than counting toes and looking for claw marks. Much has changed since September.