PLATE 12. 



ROSEATE TERN. SANDWICH TERN. 



(Seep. 409.) (5/. 4 .) 



COMMON GUILLEMOT. 

 (.Seep. 158-) 







COMMON TERN. LITTLE TERN. ARCTIC TERN 



(&/. 4050 CSK*4<*.> CSA 402.) 



NOTE. In referring to the eggs the above names should be read from left to right. 



