38 NILS GYLDENSTOLPE, ZOOLOGICAL RESULTS OF THE SWEDISH ZOOLOGICAL EXPEDITIONS TO SIAM. 
Like ‘the other members of the family this species was generally seen in small par- 
ties together with Sitta neglecta Waup. and Dendrophila frontalis, Swarns. 
55. Sitta neglecta. WaLp. — The Burmese Nuthatch. 
Sitta neglecta: Gyldenstolpe III p. 167. . 
do Koon Tan */5 1914. L=95 mm; W = 79,2 mm.; — gf Koon Tan %; 1914. L = 135 mm.; 
W = 77,3 mm; T = 44,3 mm; C= 15 mm. — § Koon Tan 4/5 1914. L = 125 mm; W = 81,3 mm.; 
T = 43,2 mm; C= 15 mm. — § Doi Par Sakeng 7%, 1914. L=128 mm.; W = 78,2 mm.; T = 43 mm.; 
C = 16 mm. — Irides: greyish brown. Bill: blackish brown. Legs: plumbeous. 
The Burmese Nuthatch is sparsely distributed over the Northern parts of the 
country. It was nowhere common but some specimens were seen together with Sitta 
cinnamoventris BLyTH in the deciduous dry forests. 
56. Dendrophila frontalis. Swarns. — The Velvet-fronted Blue Nuthatch. 
Dendrophila frontalis: Miller p. 372. 
Sitta frontalis: Oustalet 1903 p. 7; Gyldenstolpe II; Gyldenstolpe III p. 167. 
Sox Locality Date Length Wing Tail Culmen | Tarsus 
mm. mm. mm. mm. mm. 
fon Koon Tan 13/9 1914 115 74 43 11,5 12 
J Koon Tan 29/5 1914 112 73,5 42,7 12,5 11,6 
fom Koon Tan 5/5 1914 122 71 39 12 ll 
o Doi Par Sakeng |": 1914] 115 15 42 13 12,2 
2 Pak Koh 18/3 1914 110 74,2 41 13 13 
2 Koon Tan 29/, 1914 118 72,5 43 13,1 12 
2 Bang Hue Pong | *%/s 1914 121 73 42,5 13 13 
Tris: Yellow (ad.); vinaceous grey (young). Bill: Orange red with black tip (ad.); black (young). 
Fairly common in the deciduous hill-forests of Northern Siam; sometimes though 
more seldom at the outskirts of the evergreen jungles. When observed it generally 
was in small parties of about 4 to 6 individuals which were busy searching the tree- 
trunks for insects and giving their presence known by a note, beeing best explained by 
»chik-chik » repeated several times. 
The colour of the underparts seem to vary rather much and birds shot in July and 
September have a much more vinaceous-blue under surface than birds shot in March 
to May. 
The young birds have the bills quite black; the irides vinaceous grey; the abdomen 
pale cinnamon and the under tail-coverts whitish buff barred and tipped with cinnamon. 
A bird, shot at Koon Tan on the 29th of May, and still showing traces of beeing 
immature in the barring of the under tailcoverts, is of rather a remarkable colour beeing 
pale vinaceous blue on the whole upper parts of the body, this colour being exactly like 
the colouring of the under parts of the body in freshly moulted birds; the black frontal 
band is not so prominent as in other specimens. 
