Broad-tailed Hummingbird  
  (Selasphorus platycercus)   		 1 2  
       Recorded by Eric DeFonso on 2017-10-29
United States, Spring Brook Trail, El Dorado Spgs, Boulder County, Colorado
Comments: display sounds, male, wing whirr.   Male performing U-flight display, with mechanical sounds at base of dive and usual wing-whirr.     bird-seen:yes     playback-used:no       Citation: Eric DeFonso, XC206008. Accessible at www.xeno-canto.org/206008.

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