Sandhill Cranes Study Lake Wingra As Twilight Falls
They converge on the river at winter's end as they have for eons, carpeting the wetlands. In this light, something saurian still clings to them: the oldest flying things on earth, one stutter step away from pterodactyls. As darkness falls for real, it's a beginner's world again, the same evening as that day sixty million years ago when this migration began. -- Richard Powers, The Echo Maker
More at my blog Letter from Here.