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The tempo of migration is also different. Spring birds are driven by an urgency to reach their nesting grounds, traveling north in restless waves. Web sites record the first arrival of hummingbirds and purple martins in Virginia, county by county.
In autumn, on the other hand, most birds proceed at a more leisurely pace, in no hurry to leave. “With the cares of the nesting season over," Price noted in a description of
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