U. S. NATIONAL MUSEUM 



PROCEEDINGS, VOL 56 PL. 60 



fen 





Fig. I. 



Showing Nesting Habit of Sula nebouxi at Lobos de Tierra Island. 

 January, 1908. Adult Birds 



For DEscRlPTlO^ see page 47! 



Fig. 2. Nests of Sula nebouxi Milne-Edwards. Lobos de Tierra Island, 



April 2, 1907 



Note different stages of development shown by the two nestlings at nest in foreground 



For description see page 472 



