60 MR. W. J. F. WILLIAMSON ON 



Muak-lek, Dong Eek ran^e, Eastern Slam. According to Gates 

 ( Faun. Brit. Iiid. Birds, I (1889), p. 449 ) this species " trequents 

 swamps, the banks of rivers and canals, and grassj' plains wliicli are 

 liable to inundation, " but this description of its habitat does not apply 

 to the localit}' where I obtained it, Muak-lek is situated in a broad, 

 flat valley, some 800 ft. above sea-level, and although the valley is 

 intersected bj' a stream, the latter flows mostly between high banks, 

 densel}' covered with trees, and the grassy portions of the valley are 

 not, T should say, subject to inundation. 



7. Hemipus OBSC0EUS. The Malayan Pied Shrike. 



1 c? obtained by Jlr. C. J. Aagaard »at Bangnara, Penin- 

 sular Slam, on 9tli May 1915. 



8. CAMPorHAGA TEKAT. The Pied Cuckoo-Shrike. 



First obtained by Mr. J. J. McBeth in July 1914 at 

 Singora, Peninsular Siam, flying about in small flocks among the 

 Casuarina trees on the sea-shore. It has since been also found by Mr. 

 C. J. Aagaard and my collector at Bangnara. Peninsular Siam. 



9. Alauda gulgula sala. The Formosan Sky-Lark. 



This is the bird which I have jireviously ( Journ. Nat. Hist. 

 Soc. Siam, 1 (1915), p. 198) recorded in error as Anfhus striolatus. The 

 mistake was detected by Mr. E. C. Stuart Baker, v. z. s., Ji. li. o. u., when 

 he was looking over my birds last year at the British Museum. The speci- 

 mens have also been since e.xaniined by Dr. E. Hartert, M. K. o. v., who 

 writes to me as follows : — " It seemed liardl3' conceivable that tha true 

 A. ij. sala, which has only been found on Formosa and South Hainan, 

 should also be found in Siam, though it must be admitted that we do 

 not fully know if it is found in Cochin China, etc., but in S. China it 

 is represented by A. (j. coelirox. I have, however, carefully compared 

 your Siamese skins with the true A- ij. xala in the Britisli and Tring 

 Museums, and must admit that there are no tangible differences be- 

 tween them ; all I can see is that the stripes on the chest in nearlii all 

 your specimens from Siam are slightly narrower, while the beak in 

 some, or I may say onosl, of your examples is somewhat thicker. The 

 breast and sides of the body in the Siamese birds are slightly more 

 tinged with vinous bull. There is no difference in size. I measure 

 the wings as follows : — 



JOURN. NAT. UIST. SOC. SUM. 



