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Archive for rufa red knot migration

To the Moon and Back

By Linda Tancs

The shorebird Rufa red knot pursues an annual migration that, over the course of an average 13-year lifespan, represents a journey to the moon and back.  Well, almost.  The average distance to the moon is 237,000 miles; the average red knot will have traveled over 194,000 miles over a lifetime–breeding in the central Canadian Arctic and wintering in Tierra del Fuego, Argentina, an exodus of roughly 14,950 miles each year.  But of course there are outliers.  Like the so-called Moonbird, calculated to be at least 21 years young and to have traveled a whopping 400,000 miles.  And that’s no April Fool’s joke.  Undoubtedly, Moonbird is the king of long-range fliers in the avian world.

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