Crow Symbol of Bad Luck?

That really depends on your beliefs and where your from. The crow is know to be one of the most intelegent birds. The norse actually considered them a good omen & the messengers of the gods.

Crows and black cats have paid a high price for their black feathers and fur in superstition. They both have good qualities. * Cats of all colors eliminate vermin of all kinds & provide companionship as pets to millions of people around the world. * Crows are highly intelligent members of Nature's clean up crews who come in different suits in various parts of the world: All black in America or black n' white in Australia. * Now, tell me, do gray, tabby, orange kitties have bad reps? Do black & white crows have sinister reps? Why?

It has lots of symbolism, often messengers from the other side. There's an article here: http://www.askyewolfe.com/symbolism-crow.html It's really interesting and explains a lot about the myths and origins of superstition about the crow.