KKY TO TIIK M'ATI^R IJIRDS OV FI.ORIDA. 



145 



Subfamily STERNIN.^. Ter] 



Sterna maxima. 



Sterna fuliginosa. 



Length. 21; Wing, 1(>; Tail, 6.10: Tarsus, 1.80 ; 

 Bill. 3. Bill deep red; primaries dark slate 

 color on inner webs. 



Length. 19; Wing, 14; Tail, 7.10; IJill. 2.40. Bill 

 orange or yellow ; back pearl gray; under parts 

 white. 



Length, 17: Wing, 11.50: Tail. 7.20: liill, 1.70. Bill 

 black ; l)ack and upper parts l)rownish l)lack ; 

 under parts white. 



Length. l»">.i>0; Wing, 10.50; Tail, 5.60 ; l'>ill. 2.10. 

 Bill black tipped with yellow ; back pearl gray; 

 under parts white. 



Length, 15; Wing, 10.30; Tail. 5.50; Bill, 1.45; Tar- 

 sus, .70 to .So. Adult in summer — Bill red tipped 

 with black; feet red ; under parts ashy. Adult 

 in winter — under parts white ; bill brownish black: 

 Outer web of outer tail feather darker than 

 inner web at all seasons. 



Sterna tschegrava. 



Caspian Tern. See page 194 



Sterna maxima. 



Royal Tern. .See page 195 



Sterna fuliginosa. 



Sooty Tern. See page 19S 



Sterna sand vicensis acuflavida, 

 Cabot's Tern. See i)age 195 



Sterna hirundo. 



Common Tern. See page igfi 



