On the way home it was night. Not my best time for birdwatching. She commented about shadows and shapes in the trees and fields. With only moonlight she started to see the edges of fields and forest. Once she imagined the edges as urban intersections, she could see more, since in the city lots of commuters piled up at a stoplight waiting for it to change before they moved. The life of the humans was linked to proper street crossing skills. So also is the life of a small mammal dependent upon a bird of prey sees or hears it.[end snippet”>