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Rolf Lawrenz: Bonaparte's Gull (Chroicocephalus philadelphia)
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Rolf Lawrenz: Red-breasted Merganser (Mergus serrator)
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Rolf Lawrenz: Red-breasted Merganser (Mergus serrator)
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Rolf Lawrenz: Red-breasted Merganser (Mergus serrator), Bonaparte's Gull (Chroicocephalus philadelphia)
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Rolf Lawrenz: American Coot (Fulica americana)
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Rolf Lawrenz: Bird River Refuge
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Rolf Lawrenz: American Coot (Fulica americana)
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Rolf Lawrenz: Red-breasted Merganser (Mergus serrator)
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Rolf Lawrenz: Red-breasted Merganser (Mergus serrator)