| Adults | Flying |   
  

(Vagrant to mid-west coast and northeastern United States, and islands of western Alaska)
 

   White-winged Tern
   Chlidonias leucopterus
 Lesvos, Greece
 3 May 2006

  
 by Richard Coomber
 İRichard Coomber
   White-winged Tern
   Chlidonias leucopterus
 Lesvos, Greece
 3 May 2006

  
 by Richard Coomber
 İRichard Coomber