I took this photo a few weeks ago on my block just outside of Uptown — a civilized residential neighborhood you’d think, but a hot bed of nature, as it turned out. That’s a hawk standing proudly along the sidewalk. In its talon: A squirrel, which it hunted and ate (you can see the entrails at the bottom of the pic). Nasty, yes, but fascinating. And it makes me a little scared to walk my Chihuahua now.