TERNS. 128 



breeds commonly on Tortugus. Fla., and 

 occurs regularly but rarely along the coast 

 of S. C, casually to N. E. 



Short=tailed Terns. 



Small, dark above and sometimes be- 

 low ; tail, shorter* than tips of folded wings 

 and but slightl.y forked. Eggs, 3-4 averaging 

 darker than others of the family. 



Fior. 91 



Sooty Tern. 1- 



86. BLACK TERN. 



Length, 9; black throughout with under 

 portions of wings and under tail coverts, 

 white, fig. 92. Winter, head, excepting 



