KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 56. N:0 2. 135 
280. Anas poecilorhyncha. Gm. (?) — The Spotted-billed Duck. 
During my journey down the Meh Ping river from Chieng Mai to Paknam Po I obser- 
ved a small party of Ducks on the 8th of October 1914 a few miles south of Keng Soi. 
Unfortunately I did not obtain a specimen but they were probably Anas poectlo- 
rhyncha, GM. 
281. Nettopus coromandelianus. Gm. -—- The Cotton Teal. 
Nettopus coromandelianus: Gyldenstolpe I p. 74; Barton p. 109; Gairdner p. 31; Gairdner p, 153. 
do Chieng Hai °/s 1914. L = 305 mm.; W = 158 mm.; T = 70 mm.; C = 24 mm. — Irides: crim- 
son. Bill: black. Legs: yellowish brown. 
The Cotton Teal was not so common as the Whistling Teal, though it occurred at 
the same localities. I never observed larger flocks than about 8—10 birds and most often 
they were met with in couples. This species likes large swamps best of all and especially 
those where the water is fairly deep and where there are reeds or high grass to conceal 
in. They dive exceedingly well and generally escape by diving when not mortally wounded. 
282. Dendrocygna javanica. Horsr. — The Whistling Teal. 
Dendrocygna javanica: Gyldenstolpe I p. 73; Williamson I p. 48; Barton p. 109; Gairdner p. 29; Grant p. 
115; Bonhote p. 81; Robinson & Kloss p. 21; Robinson I p. 89; Robinson II p. 148; Gairdner p. 153. 
do Chieng Hai */p 1914. L—= 410 mm; W = 189 mm; T= 65 mm; C = 42 mm. — @ Chieng 
Hai */s 1914. L = 410 mm; W = 197 mm.; T = 61 mm.; C = 41 mm. —  Chieng Hai 7/5 1914. L = 
410 mm.; W = 193 mm.; T = 65 mm.; C = 42 mm. —  Chieng Hai 3/s 1914. L = 390 mm.; W = 188 
mm.; T = 62 mm.; C = 41 mm. -— Irides: brown. Bill: black. Legs: plumbeous black. 
The Whistling Teal was very abundant in some of the larger swamps of Northern 
and Central Siam. It also occurred in the larger rivers where the current was not to swift. 
At these last-mentioned places it was, however, always more rare than in the marshy 
country. Sometimes I even found them among the high grass on the paddy fields. 
283. Dafila aquta. Linn. — The Pintail. 
The Pintail seems to be rare in Siam. The only specimens I observed, were those 
kept in confinement by the Laos Prince of Chieng Mai, and which had been obtained 
at Pra Yao, a small town in Northeastern Siam. 
During my travels in different parts of the vast country I never met with a single 
specimen in wild state. 
284. Querquedula querquedula. Linn. — The Garganey Teal. 
Querquedula querquedula: Gairdner p. 153. 
Querquedula circia: Williamson I p. 48. 
Seems to be confined to the larger rivers and the inner parts of the Gulf of Siam. 
Here it, however, only occurred quite close to the shore. 
In the inland lakes and swamps it was never met with during my journey. 
