Bird Stacking.

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Avatar of WallaceAndGromitFan

If anyone is feeling down, just look at this image. Scientists are unsure as to why the Harris Hawk does this, but they do. It may be to get a better vantage, but who really knows. Up to five birds have been seen on top of eachother. Crazy, right?

Avatar of peterbrandt1000
Yes quite fascinating
Avatar of toysandgames
Yes