I was walking to the grocery store today under a perfect blue sky. Two blocks from home I heard them again, snow geese on high. A skein of about two hundred was passing over, a twisting net not quite managing the classic V. They were scarcely out of earshot before a second, larger group passed over, a broken V, one arm twice the length of the other and bearing two or three side-branches.
They were way up there, invisible to those of us down here with less than, say, 20/30 uncorrected vision, yet their voices were arriving at ground level as distinctive, individual honks. Some five-pound bird two thousand feet up emits a honk, what it is programmed to do while in transit, and way down below on the sidewalk a guy on his way to buy 2% hears it and looks up.
My camera, Mr. Hesitation, has 10X magnification, enough to provide a decent skein-shot. I wished I had brought him with me. In this digital age one must always provide a jpeg, otherwise it never happened.
Listen, look up (get out of your car), and always take your camera.