102 MESSRS. ROBINSON AND KLOSS ON 



150. Circus melanoleucus (Forst.). 



Falco melanoleucus,¥ori^teY, Ind. Zool. 1781, p. 12, pi. ii. 



Circus meJanoleums, A., p. 21 (Tavoy, Malewoon, and Tongka) ; B., 

 p. 78 (Junk Seylon). 



6 ad. 2 imm. Namchuk, Pakchan, Peninsular Siam. 24-25 

 February, 1919. (Nos. 4202, 4230). 



"Male. Iris and feet chrome ; bill black." Female. Iris lemon; 

 bill slate, cere and base yellowish green ; feet pale yellow. 



Total length, <S 442, $ 463; wing, 6 352, 2 364; tail, cT 217, 

 9 240; tarsus, d 67, 2 80; bill from gape, c? 28, 9 32, mm. 



This beautiful Harrier is a rare winter visitor to the southern 

 parts of the Malay Peninsula as far south as Johore ; Mr. Seimund 

 has obtained several specimens in the swampy plains near Kuala 

 Lumpur. It is common in Peninsular and S. W. Siam whence we 

 have seen many specimens. 



Circus spilonotus Kaup. 



Circus spilonotus, Kaup in Jaidine's Contr. Ornith. 1 850, p. 59 

 (Asia) ; Williamson, Journ, Nat. Hist. Soc. Siam iii, 1918, p. 

 29 (Bangkok, and Tachin river mouth). 



Occurs in small numbers in the Malay Peninsula, but often 



confused with the preceding. 



151. Circus seruginosus seruginosus (Linn.). 



Falco ceruginosiis, Linn. Syst. Nat. i, 17G6, p. 1.30 (Europe). 



Circus cermjinosus, A., p. 22 (Pakchnn) ; B., p. 78 (Junk Seylon) ; 

 F., p. 21 (Langkawi Ids.) ; I., p. 124 (Koh Lak). 



IS, 5, Namchuk, Pakchan, Peninsular Siam. 25-26 Feb- 

 ruary, 1919. (Nos. 4231, 4232, 4253). 



" Male. Iris lemon ; bill slate, cere and base yellowish green ; 

 feet pale yellow. Female. Iris yellow; bill black, cere and base 

 greenish slate ; feet dirty yellowish." 



Total length, 6 510, 535, 9 521; wing, c^ 395, 403, 9 400; 

 tail, 6 243, 250, 9 235 ; tarsu.s, S 85, 85, 9 88 ; bill from gape, 

 c^ 40, 38, 9, 32 mm. 



A. Hume & Davison, Stray Feathers, vi, 1878. E. O. Grant, Fasciculi Malayenses, iii (Birds), 1905, 



B. Muller, I>ie Ornis der Insel Salan(?a, 1882. F. Eobinson and Kliiss, Ibis. 1910-11. 



C. Oativ-i, Birds Brit. Jiurmah, Vols, i & ii, 1883. C Gairdner, Jouni. N. II. Soc. Hiam, i, 1915. 



D. Bouhote, P.Z. 8. 1901, Vol. i. H. Itobinson, Journ. F. M, S. Museums, v, 1915. 



JOURN. NAT. HIST. SOC. SIAM. 



