TERNS. 



113 



dusky; cap, white anteriorly, dusky behind 

 wholly across occiput, extending forward 



Fig. 80 



Cabot Tern. 1-7. 



narrowly around eye; mantle, a little darker 

 than in adult sometimes banded with dusky; 

 bill, nearly black; wings, much as in adult - 

 tail, shorter, ashy with outer webs dusky ; 



Fig. 81 



Common Tern. 1-10. 



feet, red. Cry, " te-arr" last syllable pro- 

 longed; alarm, " ~ki" repeated rapidly many 

 times. Greater portion of Northern Hemis- 



