( "if'S ) 



TI. LIST (_»F THE FIRST COLLECTION OF BIRDS FROM THE 

 NATUNA ISLANDS. 



By ERNST IIARTERT. 



In the followiiitr j)a,u'es I give an account of the first collection of hinls from 

 the Natnna Islands, made iu September on Sirhassen Island, and at the end of 

 September and in October 1893, on Bnnguran Island, by Mr. A. Everett. 



In order to understand the geographical relations of the birds of the Natnnas, 

 I shall give in short the distribution of all the resident species, at least, whether 

 they are of the Malay Peninsula, or of Borneo, or e.xtend over both these countries. 



I have in ever// case actually compared our Natuna specimens with a series ot 

 birds of the same species from other localities, and where the material at Tring did 

 not seem to be sufficient, I have compared it with the material in the British 

 Museum. My thanks are due to my friend Mr. Sharpe and his attendants for their 

 help in looking up the re([uired species, and other acts of courtesy, which enabled 

 me to finish my work in the British Museum in a very short time. 



I. Monticola cyanus solitaria (P. L. S. Mull.). 

 A single /rw/c'/tf of the Eastern Bine Rock Thrush, or more likely of the inter- 

 mediate forms between the Eastern and Western form, from Bnnguran. 



,. Cittocincla macrura (Gm.;. 



Adult males, females, and immature birds from Bnnguran. They belong to the 

 continental C. macrura and not to the Bornean C. smicis Scl. This latter firm 

 seems to be in some way connected with C. macri<rri from the continent, through 

 the dark females in South Tenasserim and Malacca, but they show constantly more 

 white in the lateral tail-feathers. They may, perhaps, conveniently be treated sub- 

 s[)ecifically (see Sharpe, Cat. B., vii., jip. ST and 88). 



"Iris dark brown: bill black: legs pale flesh colour; nails horn brown" 

 (A. Everett). 



3. Phylloscopus borealis (Bias.). 

 Eight specimens from Bnnguran, Octi'bir '.ith to October l!)th (winter visitor). 



4. Locustella certhiola (Piill.). 

 One adnlt wale from Sirhassen, September 'SixA (winter visitor). 



■J. Orthotomus ruficeps (Less.). 

 Five males and females from Sirhassen (Malay Peninsula, Sumatra, Borneo, 

 and Palawan). Fully adnlt birds have the tail-feathers chestnut rufous with the 

 centres blackish brown near the base, while immature sjiecimeus have them brown 

 with pale tips and a broad blackish subterminal bar. 



0. Orthotomus atrigularis Temm. 

 Si.x males and as mnuy females from Bnnguran. The females all want the 

 black throat stripes that characterise the male, and the chestnut red colour of the 



