Hi, 
   
  While out walking a bit ago, I heard a White-crowned Sparrow sing from the side of the bike path right near the sign for mile marker 3.5.  This is the segment between Bethesda Avenue and Bradley Boulevard.  
   
  Not earth-shattering, but nice to hear.  
   
  Rob Hilton
  aimophila10
  Silver Spring
  yahoo
  Maryland

       
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