Crows have become highly
skilled at making a living
in these new urban environments.
In this Japanese city,
they have devised
a way of eating a food that
normally they can't manage.
[CROWS CAWING]
Dropping a road from a great
height onto a hard road
does sometimes crack it.
But some nuts are
particularly tough,
so the crows have
devised a better way.
Drop it among the traffic.
[ENGINES WHIRRING]
[CRACK]
The problem now is
collecting the bits
without getting run over.
[CARS WHIZZING BY]
So some birds have
refined their technique.
They station themselves
beside pedestrian crossings.
Wait for the lights
to stop the traffic.
[BEEPING]
Then collect your
cracked nut in safety.
[HORN HONKING]