| Males | Females |   
  

  
   Black-throated Blue Warbler
   Setophaga caerulescens
 Female
 St. George, Utah
 12 Oct 2008
  
 by  Rick Fridell
 İRick Fridell
   Black-throated Blue Warbler
   Setophaga caerulescens
 Female
 St. George, Utah
 12 Oct 2008
  
 by  Rick Fridell
 İRick Fridell