22 NILS GYLDENSTOLPE, ZOOLOGICAL RESULTS OF THE SWEDISH ZOOLOGICAL EXPEDITIONS TO SIAM. 
Lower Siam. As already remarked by Harrert (Nov. Zool. vol. IX. 1902 p. 579) the 
form called D. p. platurus VIEILL. is only a synonym of the typical form. 
I therefore consider that the larger D. p. malabaricus Latu. inhabits Northern 
Siam. This race is characterized by its long crest and its size is also larger than any other 
form of the Racket-tailed Drongo, except D. p. grandis GouLp. from the Himalayas 
and Assam. 
Another allied form D. p. johni Hartert. inhabits the island of Hainan. This 
species has also a long crest but is lacking the hair-like plumes. On an average it is also 
decidedly smaller. 
12. Bhringa remifer. Temm. — The Lesser Racket-tailed Drongo. 
Bhringa remifer: Robinson III p. 760. 
@ Doi Par Sakeng 1%/; 1914. L = 247 mm.; W = 140 mm. T = 143 mm.; B = 25 mm. — @ 
Koon Tan 5/g 1914. L = 236 mm; W = 130 mm.; T = 130 mm.; B = 26 mm. — Irides: reddish brown. 
Bill: black. Legs: black. 
In the collection there are only two specimens of the Lesser Racket-tailed Drongo, 
the one obtained at Doi Par Sakeng in Northwestern Siam and the other one at Koon 
Tan in the Northern parts of the country. The specimens obtained are both females 
and probably immature because there is not the slightest trace of the elongated outer 
tail-feathers and the tail is almost square and not forked at all. The nostrils are densely 
covered with bristles and plume-like feathers. 
This beautiful Drongo seems to be very rare in Siam and besides this record it has 
only been found by Boprn Kuoss during his recent trip to Southeastern Siam. 
Fam. Oriolide. 
13. Oriolus indicus. Jurp. — The Black-naped Oriole. 
Oriolus indicus: Oustalet 1903 p. 39; Miller p. 390; Robinson & Kloss p. 72; Williamson I p. 43; Gylden- 
stolpe II; Gyldenstolpe IIT p. 168; Gairdner p. 149; Williamson II p. 201; Robinson III p. 758. 
3 Koh Lak »/1n 1914. L = 230 mm; W = 143 mm; T = 93 mm.; C = 27,5 mm. — ¢° Koon 
Tan May 1914. W = 152 mm.; T = 96 mm.; C = 29 mm. — @ Koon Tan 3/5 1914. L = 266 mm.; W 
= 149 mm.; T = 98,7 mm.; C = 30 mm. — @ Pa Hing %/s 1914. L = 236 mm; W = 142 mm; T = 
95 mm.; C = 28 mm. — Irides: brownish red. Bill: pink. Legs: plumbeous. 
The Black-naped Oriole was very locally distributed in secondary and thin tree 
jungle. In Northern Siam it was by no means as common as O. melanocephalus LINN. 
which latter species also was obtained in the Siamese Malaya where O. indicus seemed 
to be rather rare. 
The Black-naped Oriole is probably to be considered as a partially migratory bird 
when the rains set in. Then it moves to more southern districts and it has been recorded 
by WILLIAMSON as being very common in Bangkok where it is said to be far more abun- 
dant than Oriolus melanocephalus Linn. 
