A Japanese study of urban crows found that the birds dropped hard-shelled nuts in the road at traffic intersections for cars to roll over and crack. When the traffic was heavy, the crows waited for the walk signal before grabbing their snacks from the street. How can you not admire that?-- from a review by of Deborah Blum of Crow Planet by Lyanda Lynn Haupt.
The crow's ability to adapt to man-made environments - in contrast to the struggles of more fragile species - has made it one of the planet's most successful bird species. But this achievement is the source of Haupt's ambivalence: it's everyone's loss, she reminds us, if we create an environment that accommodates only tough survivor species like the crow.
Perhaps in the long run crows, rats, cockroaches and other 'tough' species will radiate into endless new forms most beautiful.