THE BIRDS OF NORTHERN THAILAND 185 



CAPRIMULGUS INDICUS JOTAKA Temminck and Schlegel 



Japanese Jungle Nightjar 



Caprimulgus jotaka Temminck and Schlegel, in Siebold, Fauna Japonica, Aves, 



1850 [=1847], pp. 37-39, col. pi. 12, col. pi. 13 (Japan). 

 Caprimulgus indicus jotaka, Riley, U. S. Nat. Mus. Bull. 172, 1938, p. 155 (Mae 



Khan). 



Eisenhof er sent to Stockholm an undated specimen from Khun Tan, 

 and Smith took one at Ban Mae Khan, February 8, 1932; the jungle 

 nightjar is otherwise unknown from northern Thailand but probably 

 occurs as a rare winter visitor throughout our provinces. 



The adult male has the entire upperparts mottled blackish brown, 

 brownish gray, and black, the last two colors especially prominent 

 on the scapulars and innermost secondaries ; a conspicuous white band 

 across the four outermost primaries near their center ; the four outer 

 pairs of tail feathers with a broad, subterminal white band; a white 

 throat patch ; the breast closely barred blackish brown and gray ; the 

 remaining underparts buff with increasingly widely spaced blackish- 

 brown bars. The adult female is similar but wholly lacks white mark- 

 ings in the wings and tail. 



I have not examined the Stockholm bird and am not really certain 

 that it belongs to the Japanese migratory race. The wing of the Wash- 

 ington specimen measures 192 mm.; the tail, 127 mm.; the distance 

 between the tips of the first and fourth primaries, 17 mm. See Mayr, 

 Ibis, 1938, pp. 310-312. 



CAPRIMULGUS MACRURUS AMBIGUUS Hartert 



Tenasserimese Long-tailed Nightjar 



C[aprimiulgus] macrurus ambiguus Hartert, Ibis, 1S96, p. 373 ("Malay Penin- 

 sula, Burma, Assam, and the Eastern Himalayas" ; type locality restricted to 

 "the southern part of Tenasserim," by Boden Kloss, Ibis, 1918, p. 96). 



Caprimulgus macrurus ambiguus, Gyldenstolpe, Kungl. Svenska Vet.-Akad. 

 Handl., 1913, p. 57 (Mae Yom river near Phrae) ; Journ. Nat. Hist. Soc. Siam, 

 1915, p. 232 (listed).— Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 1936, p. 90 

 (Chiang Mai). 



Caprimulgus macrurus albonotatus, Gyldenstolpe, Kungl. Svenska Vet.-Akad. 

 Handl., 1916, p. 108 (Pha Kho) ; Ibis, 1920, p. 583 (Pha Kho, Mae Yom river). 



Caprimulgus macrourus bimaculalus, Deignan, Journ. Siam Soc. Nat. Hist. 

 Suppl., 1931, p. 163 (Chiang Mai). — de Schauensee, Proc. Acad. Nat. Sci. 

 Philadelphia, 1934, p. 266 (Chiang Rai, Chiang Mai). 



The long-tailed nightjar is a common permanent resident of the 

 northern provinces, occurring chiefly on the plains, more rarely on 

 the mountains to about 4,600 feet. Eisenhofer sent to Stockholm five 

 undated specimens from Khun Tan; I have examples from Chiang 

 Mai, Doi San Huai Wai, Doi Nang Kaeo, and Doi Chiang Dao. 



