http://www.pbs.org/wnet/nature/episodes/a-murder-of-crows/full-episode/5977/

Although cultures around the world may regard the crow as a
scavenger, bad omen, or simply a nuisance, this bad reputation might overshadow
what could be regarded as the crow’s most striking characteristic – its
intelligence. New research indicates that crows are among the brightest animals
in the world. NATURE’s A Murder of Crows brings you these so-called feathered
apes, as you have never seen them before.

Gary Osoba <<wosoba>>
writes:

My earliest memories in life involved things that fly- soap
bubbles floating in the air, birds on the lawn as I crawled around in diapers
trying to reach them. As a boy, I caught, tamed, and trained birds as diverse as
Blue Jays, Falcons, and Owls. However, the Common Crow was my favorite due to
their intelligence and personality. I repeated the experience with my children
when they were toddlers. Here's a full length Nature documentary about the
intelligence of Crows and how they rate within the context of the animal world.
Be prepared for some big surprises.

Although the final experiment portrayed is (IMHO) suspect science, the
production is worth watching. It's long but very enlightening. If nothing else,
watch the valid experiment starting at about 14 minutes and lasting 5 or so.