from Western Australia. 203 



of red weeds and the laying of eggs it would be interesting 

 to know. Very little skill is necessary to obtain a pleasant 

 effect in nest-building among mangroves. The cluster of 

 weeds which form the nest measures six inches across and 

 four inches in depth, the bowl being a slight depression of 

 half an inch. 



That this " rookery " has been used for two or more 

 years is shown by the guano upon the branches and older 

 portions of the nests. While making observations, a bird 

 flew at me, and brought blood from my lower lip with its 

 bill. 



Q7 . Gabianus pacificus. Pacific Gull. (Hall's Key 

 p. 90.) 



Fledgling (about seven days old). 27.10.99. Houtman^s 

 Abrolhos. 



The nest of this species is a slight " mound " lined with 

 salt-bush twigs. 



68. Pelagodroma marina. White-faced Storm-Petrel. 

 (Hall's Key, p. 91.) 



A. Sk. ad. (J. 26.10.99. South Island, Pelsart Group. 

 Houtman's Abrolhos. 



B. Nestling. 20.10.99. West Wallabi Island. Hout- 

 man^s Abrolhos. 



Nestling. — Except the chin and throat, the whole under 

 surface is covered with a sooty-grey down averaging more 

 than an inch in length. The down has fallen from the upper 

 surface, excepting the crown and rump. The back is deeper 

 slate-coloured than in the adult, and the wings, which are 

 almost free from down, are of the same colour ; the hind- 

 neck is mottled with white ; the face is deep slate-coloured ; 

 the lores white with dark tips ; the chin, throat, and cheeks 

 white; the feet slate-coloured, with a very light yellow mark 

 between the toes ; the bill is dark. The bulk appears to be 

 twice that of the adult. Girth of nestling at shoulders 

 10"5 inches ; of adult 4'5 inches. 



One nestling, well advanced, I found lying dead above 

 the entrance to a burrow and externally uninjured, 24.10.99. 



