Search Results - Yard, Helen K

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    DIETS OF INSECTIVOROUS BIRDS ALONG THE COLORADO RIVER IN GRAND CANYON, ARIZONA

    DIETS OF INSECTIVOROUS BIRDS ALONG THE COLORADO RIVER IN GRAND CANYON, ARIZONA by Yard, Helen K, Van Riper, Charles, Brown, Bryan T, Kearsley, Michael J

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    Diets of Insectivorous Birds Along the Colorado River in Grand Canyon, Arizona

    Diets of Insectivorous Birds Along the Colorado River in Grand Canyon, Arizona by Yard, Helen K., Van Riper, Charles, Brown, Bryan T., Kearsley, Michael J.

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    Willow Flycatcher Nest Reuse in Arizona (Reutilización de Nido por Parte de un Individuo de Empidonax traillii en Arizona)

    Willow Flycatcher Nest Reuse in Arizona (Reutilización de Nido por Parte de un Individuo de Empidonax traillii en Arizona) by Yard, Helen K., Brown, Bryan T.

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