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Their intelligence enables the carrion crow [Corvus corone] to adapt to new habitats. They have long since discovered that cities are good places to live. In gardens and parks they find insects, beetles and worms, eat dead animals or steal leftovers from garbage cans. In autumn, walnuts are very popular with carrion crows. If the hard shell cannot be opened with the beak, they use the throwing technique. With the walnut in its beak, the carrion crow flies high and then throws it onto roads, asphalted tracks or parking lots until it shatters. In addition, corvids have an excellent memory and can even plan for the future. They hide excess nuts for times when there is less food. Even after many weeks, the carrion crow can find its deposits precisely. http://www.hmr-video.de/