On the Ornithologij of Northern Borneo. 63 



No old birds had been seen by them on the rock, and they 

 expressed the opinion tliat it would be very difficult to procure 

 one ; but on this second visit they managed to capture an 

 adult bird in a hole, and found another e^^, which, like the 

 first one, proved to be addled. The young Shearwaters uttered 

 a plaintive liquid-sounding note something like Whitter whitter 

 whit whit wit. 



The adult bird is 13 inches from tip of bill to end of tail, 

 wing 8^ inches ; spread of wing 26 inches ; bill from point 

 to gape H inch; culmen 1 inch ; tarsus 1| inch. Colour 

 of bill uniform lead-grey, darkening on culmen ; iris very 

 dark ; legs and feet pearly white with pinkish hue underlying ; 

 back of tarsus and outer toe black ; underparts of the middle 

 and inner toe likewise black ; forehead, crown, back, and tail 

 and wing uniform sooty black ; primaries sooty black, the 

 first longest ; from chin to vent white, under eyelid white^ 

 under win^-coverts white. 



VI. — On the Ornithology of Northern Borneo. By R. 

 BowDLER Sharpe, F.L.S. &c.. Zoological Department, 

 British Museum. With Notes by John Whitehead. 



(Plates II.-IV.) 



In the present paper I have commenced a list of all the 

 species of birds procured by my friend Mr. John "Whitehead 

 during his four years' travels in Northern Borneo. The 

 chief interest naturally centres round his exploration of the 

 great mountain of Kina Balu, of the avifauna of which a 

 complete account is here, for the first time, attempted. The 

 comparison of the natural history of this mountain with that 

 of Sumatra, Java, and Tenasserim I shall leave till the end 

 of the memoir. The following are Mr. Whitehead's notes on 

 his journeys, and all his observations on the habits of the 

 different species are placed between brackets. 



" My first Bornean collections were made in the neigh- 

 bourhood of Sandakan ; the collection was small and con- 

 tained examples of a few well-known species. In April 1885 



