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, " A;^," repeated rapidly many 

 times. Greater portion of Northern Hemis- 



