National Geo did a show on ravens and crows that was pretty amazing. They showed these ravens in Yellowstone Park swoop down on a group of parked snowmobiles. They proceeded to unbuckle the saddle bags, toss out a bunch of crap like scarves and gloves, and raid their lunches inside the saddle bags.

The only black bird I'd shoot just for the hell of it any more is a starling. I have a new-found respect for ravens and crows, so I give them a pass.
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She was standin' alone over by the juke box, like she'd something to sell.
I said "baby, what's the goin' price?" She told me to go to hell.

Bon Scott - Shot Down in Flames