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Each May for fifteen consecutive years, Charles R. Brown has trekked to the Cedar Point Biological Station in western Nebraska to learn more about the behavior of colonial cliff swallows. He, his wife, and several student assistants spend the summers observing, catching, and banding swallows to determine life span, migration patterns, and nesting habits. Why study one species of swallow for fifteen years? With Swallow Summer Brown answers all the tourists, highway patrolmen, and local residents who have asked why he was leaning over bridges with nets, wading in mud up to his knees, or staring...