Perhaps thirty years ago an editor of Harper’s Magazine published an article concerning his winter sabbatical where he finished a novel. Moving into a borrowed cabin located in the Connecticut woodlands he placed his typewriter at a bay window and went to work while his wife configured a number of bird-feeding stations. One of the stations was a sardine can packed with suet and wired to a tree limb. The feeding stations became so active he abandoned his novel for a spell.
While watching, two ravens paid the sardine can a visit. Together, they untwisted the wires, letting the can fell into the snow. Then each raven grabbed a wire in his beak and in unison, they flew into the woods hauling the can between them.