154 NILS GYLDENSTOLPE, ZOOLOGICAL RESULTS OF THE SWEDISH ZOOLOGICAL EXPEDITIONS TO SIAM. 
Sex Locality Date Length | Wing Tail | Culmen 
mm. mm. mm. mm. 
es Meh Cha Di "%/ 191d | 245 142 8815 
oe Pak Koh 4M, 1914 247 149 98 15 
xs Bang Hue Pong ®le 1914 255 140 95 15 
o Pak Koh 23/3 1914 230 141 86 15,3 
ot juv Meh Cha Di 22/3 1914 212 136 70 44 
2 Koh Lak 3/11 1914 230 134 83 14 
Q Koon Tan 271, 1914 249 - 144 85 14,5 
Q Koh Lak 90/11 1914 235 140 84 4 
9 Pak Koh %, 1914 275 146 94 15,5 
Trides: reddish yellow. Bill: yellowish white. Orbital skin: green. Legs: red. 
This species was exceedingly common in Northern and Central Siam and it even 
occurred in the Siamese Malaya, where, however O. bicincta domvilli BuyTH. was the 
most common species among the Green Pigeons. 
The Thick-billed Green Pigeon was most often met with in small parties of about 
6 to 8 birds but sometimes and especially when the youngs were out very large flocks 
were found feeding on the fruit-bearing trees. 
341. Osmotreron pompadora phayrei. BuiytH. — The Ashy-headed Green Pigeon. 
Osmotreron phayrei: Gyldenstolpe I p. 65; Gyldenstolpe Il; Barton p. 107; Gairdner p. 151. 
Osmotreron pompadora phayrei: Gyldenstolpe QI p. 234. 
od Pak Koh 4/3 1914. L = 230 mm; W = 145 mm; T= 91 mm; C=15 mm. — ¢ Pak Koh 
4, 1914. L = 246 mm; W = 153 mm; T= 97 mm; C = 13 mm. — = Koon Tan 9s 1914." L = 236 
mm.; W = 155 mm.; P= 99 mm; C=16 mm. — Trides: pale crimson <f, yellow 2. Bill: plumbeous. 
Legs: purplish red. 
The Ashy-headed Green Pigeon is one of the most common Green Pigeons in the 
North. In the Siamese Malaya it was never obtained but here the allied O. bicincta dom- 
villi BLYTH. was common. 
Generally observed in small flocks, more seldom in pairs. 
342. Osmotreron bicincta domvilli. BiytH. — The Orange-breasted Green Pigeon. 
Osmotreron bicincta: Barton p. 107; Gairdner p. 39; Robinson & Kloss p. 674; Gairdner p. 151. 
Treron bicincta: Gould p. 151. 
Osmotreron bicincta domvilii: Robinson III p. 728. 
@ Koh Lak **/11 1914. L = 277 mm. W = 150 mm.; T = 90 mm.; C = 15 mm. — J Koh Lak 
Mf» 1914. L = 259 mm.; W=161 mm.; T= 109 mm.; C=15 mm. — of Koh Lak 3/12 1914. L = 270 
mm.; W = 156 mm.; T = 105 mm,; C = 17 mm. — 0 Koh Lak ™/i2 1914. L= 255 mm.; W = 154 mm.; 
T= 100 mm; C = 16 mm. — 2 “Koh Lak My 1914. L = 239 mm. W = 148 mm.; T= 91 mm; C = 
16 mm. — Irides: yellowish brown (Q), orange (¥). Bill: whitish grey. Legs: coral 9; ‘pink d: 
This beautiful Pigeon was only obtained at the neighbourhood of Koh Lak. In 
the Northern parts of the country it seems to be very rare and I never obtained a single 
