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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Large-scale population trend analysis by integrating migration counts with breeding origin estimates from feather stable isotopes: a case study with Blackpoll Warbler ( Setophaga s... by David T Iles, Erica H Dunn, Steven L. Van Wilgenburg, Kevin J Kardynal, Danielle Ethier, Adam C Smith, Charles M. Francis

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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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