Gotta recommend a book - The Mind of the Raven. A lot of it is the author's anecdotal experience with corvids he's befriended, but it goes into quite a bit of detail about the parts of their lives that we never see. The boyf is a bit of a crow fanatic, so I got him this book for his birthday last year - worth a read!

Oh, and even though I'm not around much, I'm one of the nice ones.