Vol. II , Plate 10. 



<4|M£ 



Mmm 



I^M 







m< 



(ABOUT 4-5THS NATURAL SIZE.) 



Nestlings in Down of: 1, The Black Tern {Chlidonias n. niger). 

 (Sterna a. albifrons). 3, The Common Tern (S. h. hirundo), bnff type. 

 (S. paradiscea), grey type. 5, The Boseate Tern (S. d. dougallii.) 6, 



(S. s. sandviecnsis). 



2, The Little Tern 

 4, The Arctic Tern 

 The Sandwich Tern 



[Face p. 710.] 



