BIRDS FRCIM SIAM AND THE MALAY PENINSULA 399 



The five specimens measure: Wing, 59-61 (59.7); tail, 30-36.5 

 (32.6); culmen, 12.5-13 (12.7); tarsus, 28-28.5 (28.1); middle toe 

 without claw, 15-16 (15.5) mm. 



The male of B. nipalensis is slate-color above ; the female, however, 

 is remarkably like nangka but is somewhat lighter above, lacks the 

 cinnamon-brown wash, and has the white supraloral streak of the male 

 nangka; the white streak extends farther back, however. The two 

 species are of about the same size. Birds of this genus are very puz- 

 zling and are not well understood. It seems remarkable that a race of 

 leucophris should be found in northern Siam. In B. iirayi of the 

 high mountains of the Malay States the male is slate-colored, as in 

 nipalensis. 



Robinson and Kloss ^^ record B. I. leucophris from Kao Nawng and 

 Kao Luang, Nakon Sritamarat; it is quite probable the records belong 

 rather to the present form. 



B. carolinae La Touche of Fukieu, China, is also very similar to B. 

 nangka, judged from descriptions. Delacour and Jabouille ^'^ record 

 carolinae from Tonkin, Laos, and southern Annam. This, it seems to 

 me, requires reconsideration. Birds of tliis genus are very sedentary. 



LABVIVORA CYANE (Pallas) 



Motacilla cyane Pallas, Reise durch verschiedene Provinzen des russischen 

 Reiche, vol. 3, p. 697, 1776 (Dauria). 



One male juid two females, Kao Soi Dao, December 30, 1933, 

 Januaiy 8, 1934; one male, Huey Yang, Kao Luang, Nakon Srita- 

 marat, October 6, 1930; one immature male, Koh Chang, January 5, 

 1926; one female, Mekhan, February 8, 1932; one female, Kao Sabap, 

 October 23, 1933. 



Dr. W. L. Abbott took two immature males and one female in 

 Trang (Lay Song Hong, December 27, 1896; Chong, January 22, 1897; 

 Trang, Februsny 1, 1897); one adult male and one adult female, 

 Mergui Archipelago (Domel Island, February 24, 25, 1900). 



This species breeds in eastern Siberia and the nortliern islands of 

 Japan and migrates southwesterly through central China to Laos, 

 Annam, Siam, Tenasserim, the Malay Peninsula, and Borneo to 

 winter. Apparently it occurs pretty much all over Siam in winter and 

 down Peninsular Siam to the Malay States. 



De Schauensee '" says that it is not an uncommon migrant on Doi 

 Sutep. 



" Journ. Nat. Hist. Soc. Siam, vol. 6, p. 302, 1924. 



«• Oiseaiix I'lndochine Frangflise, vol. 3, p. 101, 1931. 



<' Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 208, 1934. 



