Black-throated Grey Warbler  
  (Setophaga nigrescens)  
       Recorded by Patrick Turgeon on 2017-10-29
United States, Grand Canyon Village, Coconino County, Arizona
Comments: song.   Recorded with Sennheiser ME64 /K6 and Olympus LS-14.     Modifications: HPF1000 with 6dB roll-off.       Citation: Patrick Turgeon, XC293949. Accessible at

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