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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1957 Mar 15;43(3):293–295. doi: 10.1073/pnas.43.3.293

ON THE RELATIVE ABUNDANCE OF BIRD SPECIES

Robert H MacArthur 1
PMCID: PMC528435  PMID: 16590018

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