A good friend told me a story once. When she was a kid her family would often go to zoos and museums while on vacation. They were in the aviary on one of those visits looking at birds. My friend saw a crow asked the zookeeper a question. "What's the difference between a raven and a crow?" The zookeeper looked at her, smiled and started to answer. "Have you ever heard of a pinion feather?" he said. "Pinions are the the feathers at the tip of a bird's wing that allows it to fly. They are also the ones that people will trim to prevent birds from flying away. Crows have 5 pinion feathers while ravens have 6. So, if you think about it, it's really just a matter of a pinion."
To this day, my friend and her family don't know the real answer to "What's the difference between a crow and a raven?" They are wonderful and intelligent people, but they subscribe to a particular brand of ignorance where a good pun is better than actual knowledge. They call it punorance.
