234 bulletitm 172, united states national museum 



ary 6, 1933; one male, Chomtong, November 30, 1928; one male, Ban 

 Nam Kien, Nan, April 21, 1930; one male, Tha Fang, January 17, 

 1933; one male and two females, Knong Plira, April 10, 12, 1929; one 

 male. Ban Mekok, October 20, 1932; one female, Udon, February 16, 

 1929; two females, Lat Bua Kao, July 31, August 4, 1929; two males 

 and one female, Pak Cliong, May 5, 1925, May 4, 1926; one female, 

 Chantuk, June 16, 1934; one female, Bua Yai, February 15, 1929; one 

 female, Sakon Nakon, March 10, 1929; one male. Ban Den, February 

 25, 1929; one male, Tha Chang, March 16, 1927; one male and one 

 female, Pang Sok, August 14, 18, 1926; one female, Sakeo, near Kra- 

 bin. May 4, 1928; one female, Nong Mong, Krabin, August 30, 1925; 

 one male and one female, Nong Khor, February 7, 1927; one female, 

 Nontaburi, March 22, 1924; one female, Wang Kien, near Kanburi, 

 March 13, 1934; one male, Muang Kanburi, September 11, 1928; one 

 male. Bo Ploi, Kanburi, September 7, 1928; one male and one female, 

 Koh Lak, June 24, 1933 ; one female, Sam Roi Yot, November 11, 1932. 

 Dr. Smith took a female over the border at Ban Ong, Salwin River, 

 Burma, January 13, 1933. 



Dr. VV. L. Abbott collected three females in Tenasserim (Victoria 

 Point, January 3, 1900; Tanjong Badak, January 11, 1900; Champang, 

 December 14, 1903). 



This form is somewhat larger than D. j. javanense. 



Ten males from Siam proper measure: Wing, 144-156.5 (149.9); 

 tail, 88-111 (96.5); culmen, 30-36 (31.7) mm. Ten females: Wing, 

 140-151 (145.7); tail, 90-106 (96.9); culmen, 27-30 (28.8) mm. 



The three females from Tenasserim are somewhat larger than Malay 

 Peninsula specimens but somewhat smaller than females from farther 

 north. In other words, they are intermediate but are nearer the 

 northern form as a whole. The three females from Tenasserim meas- 

 ure: Wing, 140-142.5 (140.8); tail, 90-96.5 (92.7); culmen, 28.5-29.5 

 (29) mm. 



The male and the female taken at Koh Lak, June 24, are both im- 

 mature, about two-thirds grown, and resemble the adult male and 

 female, respectively, except they are smaller. 



The range of this form extends from southern Tenasserim and 

 Peninsular Siam north of latitude 10° N. through Burma and Siam to 

 Yunnan and eastward to Laos, Tonkin, Annam, and Cochinchina. 

 In Siam proper it is evidently a common bird all over the country 

 north of the Isthmus of Kra. Herbert reports taking a set of three 

 eggs at Ban Khang, June 14.^^ 



A somewhat smaller form, D.j. rubrojn/giolis (Malherbe), occurs in 

 western India. 



•9 Journ. Siam Soc. Nat. Hist. Suppl., vol. 6, p. 326, 1926. 



