44 Christmas Island, 



Young. Brownish on back, head fawn brown, whiter on back 

 and upper part of neck. The brown of the front of the neck passes 

 on breast into a band of brownish -black feathers. Breast and 

 belly white. Beak greyish pinkish - white ; throat and eyelid 

 greyish white. Feet ditto. Some white feathers on sides of 

 breast. Secondary-coverts blackish brown, axillaries white, edged 

 with white. Eectrices slightly tipped with brownish white. — 

 C. W. A.] 



16. Fregata ariel. 



Fregata ariel (Gould), Ogilvie Grant, Cat. B. Brit. Mus., xxvi, p. 447 (1898). 



JS'o. 18, (J. Flying Fish Cove, August, 1897. 

 IS'o. 45, $. Flying Fish Cove, August, 1897. 



According to IVIr. Andrews, the male is entirely black below, but 

 the female is white on the throat, breast, and sides of body. The 

 -centre of the lower breast, abdomen, and lower flanks are black. 



Sub-Order SULJE. 

 16. Sula sula. 



Sula sula (Linn.), Ogilvie Grant, Cat. B. Brit. Mus., xxvi, p. 436 (1898); 

 Sharpe, Handl. B., i, p. 236 (1899). 



:N'os. 7, 9, 9 ad. Flying Fish Cove, August 4, 5, 1897. 

 IS'o. 10, 9 pull. Flying Fish Cove, August 4, 1897. 

 ^0. 94, $ imm. Flying Fish Cove, November 16, 1897. 



The young bird was obtained by Mr. Andrews on the 4th of 

 August, with its mother (IS'o. 9). It is still covered with white 

 down, though more than half- grown. 



\_Sula sula (Booby) breeds near the coast. !N'est of sticks on 

 ground, usually near edge of sea cliff, but sometimes on the high 

 inland cliffs at some distance from the sea. One or two eggs. — 

 C. W. A.] 



17. Sula abbotti. 



Sula ahlotti, Eidgw., Proc. U'.S. Nat. Mus., xvi, p. 599 (1893) ; Sharpe, Handl. 

 B., i, p. 237 (1899). 



a, $ ad. East coast, October, 1897. 



This species was hitherto known only from Assumption Island 

 in the Indian Ocean. Mr. Ogilvie Grant united it to Sula cyanops^ 

 but it is certainly quite distinct. 



[Builds nests of sticks near the tops of the highest trees, usually 

 on the high land round the plateau. Shot young in September. 

 This bird is rarely seen on the north coast of the island, but 

 on the south it seems largely to take the place of S. piscatrix. — 

 C. W. A.] 



