KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 56. N:0 2. 17 
Several of these points of characteristic agree with the specimen in my collection. 
In my former paper on the Birds of Siam (Kungl. Svenska Vetenskapsakademiens 
Handlingar Band 50. N:o 8 p. 18) the wing measurement of my specimen of C’. mac- 
rorhynchus WaGL. is given to 226mm. Thisis a misprint for 326 mm. which I herewith 
take the opportunity of correcting. 
2. Urocissa occipitalis. Buiytra. — The Red-billed Blue Magpie. 
Urocissa magnirostris: Gould p. 151. 
Urocissa occipitalis: Gyldenstolpe I p. 19; Gyldenstolpe II; Gyldenstolpe II p. 164. 
lad. Koon Tan, May 1914. Wing = 201 mm.; Tail = 428 mm.; Culmen = 33 mm.; Tarsus = 40 
mm. — 1 ¢ juv. Koon Tan 1914. Length = 335 mm.; Wing = 176 mm.; Culmen = 33 mm. — Iris = 
brown; Legs = yellow. 
This beautiful Magpie seems to be distributed over the whole of Siam, but it is 
apparently very local and could be totally absent from a locality though appearing again 
close by in a place showing a similar condition as the former. Most often they were 
observed in thin tree jungle but sometimes even in shrub-jungles. Especially along the 
course of the Meh Ping river they were very abundant and small parties were seen almost 
every day. When flying from place to place they always followed each other in a long 
file which has also been stated by Davison. As a rule this species is very shy and diffi- 
cult to obtain. 
The immature birds are differing from the adult specimens in being ashy grey on 
the upper parts of the body; the head all round, sides of the neck, throat and fore neck 
dusky brown; the large white occipital patch is very well-marked; abdomen and under 
tail-coverts pure white without any bluish shade; thighs white; rest of the plumage as 
in the adult though never of the same rich blue colour. 
In the adult birds the bases of the quills seen from below are pale salmon coloured 
which extends along the inner webs of the quills. 
3. Dendrocitta rufa. Scor. — The Indian Tree-pie. 
Dendrocitta rufa: Parrot p. 119; Gyldenstolpe I p. 19; Gyldenstolpe II; Gyldenstolpe III p. 164. 
1 ad. Koon Tan, May 1914. Wing = 45 mm.; Tail = 227 mm.; Culmen = 25 mm.; Tarsus = 28 mm. 
Curiously enough the Indian Tree-pie was very rare in every part of the country 
visited during my second journey to Siam and the Siamese Laos States. In the most 
northern parts of the country it seems to be totally absent. During my former journey 
1911—1912 I found it quite common in the dry forests near Den Chai and Pak Pan, 
places situated at about Lat. N. 17° 40’. Further north I visited large areas of land 
showing a similar kind of vegetation but I never observed a single specimen myself. 
In the collections of Mr. E. E1rsenuorer I, however, found a few specimens shot at the 
neighbourhood of Koon Tan and Pa Hing. 
K. Sv. Vet. Akad. Handl. Band 56. Nio 2. 
