On Birds from the Island of Negros. 531 



much importance to the colour of the iris, and by Jerdon. 

 There are several minor details of structure in which Huhua 

 differs from Bubo ignavus, the type of the genus ; hut I should 

 not have attached generic importance to them had it not been 

 for another character, hitherto, I think, unrecognized. This 

 is that in H. nipalensis and H. orieyitalis the nestHngs have 

 a perfectly distinct barred plumage, somewhat like that of 

 young Scops Owls, whilst, so far as I am aware, typical Bubo 

 has not a distinct immature dress. When to this important 

 distinction are added the differently-coloured iris, dark in 

 Huhua, yellow in Bubo, and the much more rounded wing of 

 the former, besides some minor distinctions in the bill and 

 feet, the differences between the two types may, I think, be 

 fairly regarded as of generic importance. 



XLIX. — On some Birds from the Island of Negros, Philip- 

 pines. By Wm. Eagle Clarke, F.L.S. 



Mr. John Maclauchlan, the Director of the Dundee 

 Museum, has kindly submitted to me for identification a 

 small collection of Philippine birds, presented to that insti- 

 tution by Mr. W. A. Keay. 



Regarding these specimens it is important and satisfactory 

 to know that all of them were shot by Mr. Keay himself 

 on the east coast of the Island of Negros, so that their 

 authenticity is beyond question. 



The researches of the late Marquis of Tweeddale and 

 others, and especially those of Professor Steere, have made us 

 cognizant of the fact that some extremely interesting zoo- 

 geographical peculiarities are associated with the distribution 

 of bird-life over the Philippine group, rendering it very 

 desirable that the avifauna of each island should be ascer- 

 tained in detail, and to this end these notes are contributed. 



The collection under consideration comprises examples 

 of only twenty-five species ; but its interest and value lie 

 in the fact that no less than about one-third of them are 

 believed to be new to the ornis of Negros, some of them 



