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USNM 10668 Emberizidae Plectrophenax nivalis townsendi Ridgway VEN
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USNM 10668 Emberizidae Plectrophenax nivalis townsendi Ridgway LAT
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USNM 10668 Emberizidae Plectrophenax nivalis townsendi Ridgway TAG2
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USNM 10668 Emberizidae Plectrophenax nivalis townsendi Ridgway TAG1
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Page Scan Anatomical Series: vol.02_018826-018850
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USNM 10668 Emberizidae Plectrophenax nivalis townsendi Ridgway DOR
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Page scan of Main Catalog Series: vol.010_051926-051950
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USNM 93113 Plectrophenax nivalis
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USNM 93113 Plectrophenax nivalis
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USNM 93113 Plectrophenax nivalis
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Page scan of Main Catalog Series: vol.004_022676-022700
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Page Scan of Egg and Nest: vol.07_027526-027550
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USNM 93113 Plectrophenax nivalis
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Page Scan of Egg and Nest: vol.05_018901-018925
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USNM 93113 Plectrophenax nivalis
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Page scan of Main Catalog Series: vol.100_501526-501550
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Page scan of Main Catalog Series: vol.018_093101-093125
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Page Scan Anatomical Series: vol.01_016696-016720
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USNM 118904 Emberizidae Calcarius lapponicus alascensis Ridgway TAG1
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USNM 118904 Emberizidae Calcarius lapponicus alascensis Ridgway LAT
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USNM 118904 Emberizidae Calcarius lapponicus alascensis Ridgway VEN
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Page Scan Anatomical Series: vol.02_016701-016725
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USNM 118904 Emberizidae Calcarius lapponicus alascensis Ridgway TAG2
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USNM 118904 Emberizidae Calcarius lapponicus alascensis Ridgway DOR