Raven

"If men had wings and bore black feathers, few of them would be clever enough to be crows."

- Rev. Henry Ward Beecher

http://druidry.org/obod/lore/animal/raven.html

"Naturalist Tony Angell has proven in controlled laboratory experiments that ravens are "superior in intelligence to all other avian species tested."  Irene Pepperberg, of the University of Arizona, has gone even further, stating that corvids share "the cognitive capacities of many primates.""