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Indicator species
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Biology
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Bird populations--United States
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Article
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1. [Article] Avian population trends within the evolving agricultural landscape of the eastern and central United States
State-level Breeding Bird Survey (1980-1998) and U.S. Department of Agriculture statistics were used to test the hypothesis that changes in agricultural land use within the eastern and central U.S. have ...Citation -
2. [Article] The Impact of Weather on Kingbird Foraging Behavior
Foraging data on Eastern Kingbirds (Tyrannus tyrannus) were collected during the early breeding season in eastern Kansas to test the hypothesis that foraging rate and other aspects of foraging behavior ...Citation