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Page scan of Main Catalog Series: vol.042_210276-210300
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USNM 91826 Empidonax flavescens flavescens VEN
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USNM 35329 Empidonax flavescens flavescens DOR
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USNM 34818 Empidonax flavescens flavescens LAT
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Page scan of Main Catalog Series: vol.091_456801-456825
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USNM 91826 Empidonax flavescens flavescens TAG2
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USNM 34818 Empidonax flavescens flavescens TAG2
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USNM 359904 Empidonax flavescens imperturbatus LAT
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USNM 359904 Empidonax flavescens imperturbatus TAG1
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USNM 359904 Empidonax flavescens imperturbatus TAG2
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USNM 359904 Empidonax flavescens imperturbatus DOR
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USNM 359904 Empidonax flavescens imperturbatus VEN
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Page scan of Main Catalog Series: vol.093_463731-463755
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Page scan of Main Catalog Series: vol.059_293876-293900
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Empidonax traillii traillii, male, Mississippi
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Empidonax traillii traillii, male, Mississippi
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Page scan of Main Catalog Series: vol.048_242176-242200
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USNM 397487 Empidonax oberholseri TAG1
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USNM 397487 Empidonax oberholseri LAT
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USNM 342070 Empidonax oberholseri TAG2
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USNM 397487 Empidonax oberholseri VEN
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Page scan of Main Catalog Series: vol.033_168551-168575
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Page scan of Main Catalog Series: vol.032_159651-159675
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Page scan of Main Catalog Series: vol.033_164126-164150