Tracing aquatic resource contributions to Tree and Barn Swallow nestling diets across a cropland and wetland gradient by Ana Maria Diaz Bohorquez, Christy Morrissey, Keith A. Hobson

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An evaluation of migration fidelity of Ruby-throated Hummingbirds inferred from stable isotope methods by Geoff Koehler, Kevin J. Kardynal, Ron E. Jensen, Keith A. Hobson

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Unraveling Omnivory and Community Interactions Between Primary Producers and an Apex Predator by Ashlee J. Mikkelsen, Andreas Zedrosser, Agnieszka Sergiel, Keith A. Hobson, Nuria Selva, Anne G. Hertel

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Origins of Nearctic migratory landbird vagrants recorded in Europe revealed by feather isotopic analysis by Paul Dufour, Kevin J. Kardynal, Keith A. Hobson, David Monticelli, Yann Kolbeinsson, Peter Alfrey, Dušan Kerestúr, Thijs Valkenburg, François Fourel, Frédéric Jiguet

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Ontogeny shapes individual dietary specialization in female European brown bears (Ursus arctos) by Anne G. Hertel, Jörg Albrecht, Nuria Selva, Agnieszka Sergiel, Keith A. Hobson, David M. Janz, Andreas Mulch, Jonas Kindberg, Jennifer E. Hansen, Shane C. Frank, Andreas Zedrosser, Thomas Mueller

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