Crows Ravens: 8 Ravens are kept at the Tower of London. Their wings are clipped so they can't fly away. Legend has it that failing to have ravens residing at the Tower will cause it to crumble, and a terrible disaster shall befall England.
Did you know, the only real difference between crows and ravens is that crows have five pinion feathers, and that ravens only have four. So the difference between a crow and a raven? Well, that’s a matter of… a pinion.