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Scientists track nighttime bird migration using weather radar
![sandhill cranes flying](/news/mmg/media/images/Cranes_f.jpg)
Researchers studied sandhill cranes, among the largest migrating birds in North America.
Credit: Kyle Horton
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![A ground-based weather radar station at the University of Oklahoma.](/news/mmg/media/images/OUPrime_f.jpg)
A ground-based weather radar station at the University of Oklahoma.
Credit: Kyle Horton
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![Biologist Kyle Horton with equipment used to record bird songs](/news/mmg/media/images/KyleHorton_f.jpg)
Biologist Kyle Horton records bird songs as part of the study of migration.
Credit: University of Oklahoma
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![A white-throated sparrow](/news/mmg/media/images/WhiteThroatedSparrow_f.jpg)
The white-throated sparrow is one of many species of nighttime migrating birds.
Credit: Kyle Horton
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![Two snow geese flying](/news/mmg/media/images/SnowGeese_f.jpg)
Snow geese, like other waterfowl, are fast-flying migrants.
Credit: Kyle Horton
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![Map of North America showing the Atlantic Flyway migration route.](/news/mmg/media/images/atlanticflyway2_f.jpg)
The Atlantic Flyway is a major bird migration route.
Credit: USFWS
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