722 Mr. H. C. Robinson on Birds collected on the 



fl. ] ? . Koli Kut L*, S.E. Siam. 30 Dec, 1914. 



b. 1^. Ok Yam, Franco-Siamese Boundary (on coast). 

 2 Jan., 1915. 



"Male. Iris light yellow; orbital skin pale apple-green ; 

 bill pale greenish ivory, nostrils and gape crimson ; feet 

 carmine. Female. Iris orange; bill pale greenish ivory, cere 

 and base of lower mandible crimson ; feet carmine, soles 

 yellowish. 



" Found at Ok Yam in association with the common green 

 pigeon, but in much smaller numbers." — C. B. K. 



Stuart Baker states tliat the bird from the northern parts 

 of the Malay Peninsula belongs to this continental race, 

 while that from the southern portions is to be referred to 

 the typical form 1 . curvirostra curvirostro, whose type 

 locality appears to be Sumatra. The series in the F. M. 8. 

 Museums bears out his contention in the main, though it is 

 to be noted that while skins from Pelarit in Perlis and 

 from Bandon, collected in October and IMay, belong to the 

 northern form, others from Trang, to the north of the 

 former locality, dated December and January, are of the 

 southern race. 



It is perhaps not generally recognised that species both 

 of the 7reroni?ia iUM\ Ptilopodince yier^orm local migrations, 

 sometimes apparently of considerable extent. The present 

 species is noteworthy in this respect, and is often found at 

 some distance out to sea in the Straits of Malacca. On 

 Feb. 15, 1915, we picked up at sea, in the middle of the 

 straits about 30 miles from the Selangor coast and about 40 

 from Sumatra, a male which had dropped into the water 

 so recently that its plumage was practically dry. Both this 

 species and Ptilinopus jambu frequently alight on ships at 

 sea in the Straits of Malacca, while Ducula badia, normally 

 an inhabitant of the high mountains only, sometimes fre- 

 quents the mangroves on the coast, in order, as the Malays 



* I have given all the localities of my iusular specimens as "Island" 

 on the labels. Thoucrh the word " Koh " has that meaning, few people 

 are familiar with tlie Siamese language and I have preferred rather to be 

 redundant than obscure. — C. B. K. 



