(Found mostly in east-central US and southern Canada)  

  
   Mourning Warbler
   Geothlypis philadelphia
 Wisconsin
 22 Jun 2012
  
 by Eric Peterson
 ŠEric Peterson
   Mourning Warbler
   Geothlypis philadelphia
 Wisconsin
 22 Jun 2012
  
 by Eric Peterson
 ŠEric Peterson