ARCTIC TERN 

 Page 146 



FORSTER TERN 

 Page 142 



LEAST TERN 

 Page 148 



COMMON TERN 

 Page 143 



GULL-BILLED TERN 

 Page 137 



SOOTY TERN 

 Page 149 



ROSEATE TERN 

 Page 147 



BLACK SKIMMER 

 Page 152 



