[Mnbird] Nashville warbler active at night?

kkelnberger kkelnberger at boreal.org
Wed Jun 14 13:16:20 CDT 2017


  A friend made a recording of a bird song, at midnight and after, which 
resembles a nashville warbler song.  Is that unusual or even possible.  
My friend was doing the frog survey for the DNR.




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