BibSonomy

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North American Breeding Bird Survey

http://www.pwrc.usgs.gov/bbs/

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biology
birding
database

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BibSonomy is offered by the Data Science Chair of the University of Würzburg, the Information Processing and Analytics Group of the Humboldt-Unversität zu Berlin, the KDE Group of the University of Kassel, and the L3S Research Center.