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   Tree Swallow
   Tachycineta bicolor
 Bear River Migratory Bird Refuge
 Box Elder County, UT
 22 Apr 2016
  
 by Kendall Brown
 İKendall W. Brown
   Tree Swallow
   Tachycineta bicolor
 Bear River Migratory Bird Refuge
 Box Elder County, UT
 22 Apr 2016
  
 by Kendall Brown
 İKendall W. Brown
   Tree Swallow
   Tachycineta bicolor
 Bear River Migratory Bird Refuge
 Box Elder County, UT
 22 Apr 2016
  
 by Kendall Brown
 İKendall W. Brown
   Tree Swallow
   Tachycineta bicolor
 Females
 Strawberry Reservoir
 Wasatch County, Utah
 13 Jul 2006
  
 by Kent Keller
 İKent R. Keller
   Tree Swallow
   Tachycineta bicolor
 Franklin County, Idaho
 11 May 2010
  
 by Marvin Hansen
 İMarvin Hansen