KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 50. N:0 8. 65 



Fain. Coliimbidae. 



148. Crocopus viridifrons Blyth. — This Green Pigeon was very rare in 

 every place visited by the Expedition and I only siicceeded in getting a single spe- 

 cimen near the Meh Yome river soutli of Muang Pré on tlie 26tli of February. 



$ -V.. 1912 Meh Yome. 

 Length == 275 mm. 

 Wing =182 . 

 Tail =109 » 

 Culmen = 19 » 

 Iris = yellowish red. 



Several authors have united this species with Crocopus 'phoenico'pierus Lath. 

 which inhabits certain parts of the Indian Empire but I should think Crocopus 

 viridifrons Blyth. to be a well defined species which differs from the first-mentioned 

 bird in not having a yellowish green tail and forehead. Crocopus viridifrons Blyth. 

 is also characterized by its grey rump, while the rump in Crocopus phcenicoptterus 

 Lath. is yellowish green. 



The specimen obtained in Siarn clearly belongs to Crocopus viridifrons Blyth. 



149. Osmotreron phayrei Blyth. — The Ashy-headed Green Pigeon was 

 rather common in the hill forests near Vang Nun in the northern part of Siarn and 

 from this place I got some specimens. Like some of the other Pigeons it occurred 

 in great flocks and the natives used to catch them for food. Tliey seem to be very 

 stupid and very easj^ to catch owing to their habit of coming in great numbers as 

 soon as they get sight of one of their comrades. For catching these birds the 

 Siamese have a tame pigeon in a cage, which they place up in a tree where pigeons 

 come to feed and they catch them in great numbers by means of a sort of net which 

 they häng över the branches. 



$ '7.1 1912 Yang Nun. $ ^V.t 1912 Vang Nun. 



Length = 240 mm. Length = 250 mm. 



Wing =145 » Wing = 146,5 » 



Iris = yellowish red. 



150. Treron nepalensis Hodgs. — This Pigeon was very common but only 

 in the primeval evergreen forests at Bång Hue Hom and Nong Koh, this last-mentioned 

 place situated near the eastern coast of the Gulf of Siam. It always occurred in 

 great flocks of about as many as fifty or more birds. 



Length of 2 c^cj' = 245— 270 mm. 

 Wing » 2 ^(^ = 145 mm. 

 Tail ^ 2 <$^ ^ 82—100,5 » 



K. Sv. Vet. Akad. Handl. Band 50. N:o 8. 9 



