71. Sterna paradisea 
ARCTIC TERN. 15.50 inches 
Adult. Insummer. Above, top of head black ; back light gray ; 
tail white. Below, light gray; bill and feet red. Adult in fall. 
Similar but top of head white, mixed with black. Below white. 
Immature. Similar to fall adult but tip of bill is blackish. Dis- 
tinguished from the Common Tern by its coral red dill, darker 
breast and longer tail. 
Breeds. ‘Common summer resident on Maine coast.” 
72. Sterna dougalli. 
ROSEATE TERN. $15 inches 
Adult. In summer. Above, top of head black ; back light gray ; 
tail white. Below, white, tinged with rose in life; 62/7 black, red- 
dish at base; feet reddish. Adult in fall and Immature. Similar 
but top of head mixed with black. 
Breeds. Rare summer resident on southern coast. 
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