“NASHVILLE — At first they circle high in the evening sky. But as night descends, they, too, begin to descend, bird by bird, one at a time, and then all in a rush: 150,000 purple martins swirling together, each bird calling to the others in the failing light as they sweep past the tops of buildings in the heart of downtown Nashville. To anyone watching from the ground, they look like one great airborne beast, one unmistakable, singular mind.
Their music grows louder and louder as the circles tighten and the birds swing lower and lower, settling in the branches of sidewalk trees, or swerving to take off again as new waves of birds dip down. They circle the building and return. They lift off, circle, reverse, settle, lift off again. Again and again and again, until finally it is dark. Their chittering voices fall silent. Their rustling wings fall still.
It is not like Hitchcock: Watching these birds is nothing at all like watching crows and sea gulls and sparrows attack the characters in “The Birds,” Alfred Hitchcock’s classic horror film. The purple martins that have been gathering here the past few weeks are merely doing what purple martins always do this time of year: flocking together to fatten up on insects before making the long flight to South America, where they will spend the winter.”
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