THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 207 



Total length d, 208 (app.), 225, 2i:i, 21(j, 225, 218; 9,213, 

 220, 217, 208, 212, 228; wing 6, 07, 98, 100, 0(5, <Jf), 100; 2, 101, 

 96, 96, 97, 98, 99 ; tail d, 84 (app.), 87, 85, 93, 93, 90 ; 9, 93, 95, 88, 

 93, 87, 90; tarsus cf, 23, 26, 23, '^4, 24, 24; 9, 24, 24, 22.5, 24, 25, 

 22; bill from gapo r^, 31, 29, 30, 29, 30, 33(0; 9, 29, 28, 31, 28.5, 

 29, 29 mm. 



Consistently coninion in every suitable^ locality visited in 

 Peninsular Siam, attecting chiefly bamboo jungle near water ; not as 

 a rule f(jund near the sea or in the mangro\e zone. 



The races of this Broadljill have recently been discussed ad 

 nauseam, but after all little has been elicited that has not appearefl 

 in Hume and Davison's classic paper. Broadly speaking it may be 

 stated that there is a progressive increase in the amount of white on 

 the tail as wc proceed northwards. Bornean birds have least, and 

 to this locality the name Gyiriborhynchiis niacrurltynchus macror- 

 hyuchtis is attached, though it is by no means certain that it 

 properly applies : West Sumatran birds are next ; and if distinct, 

 will have to be called C m. leinniscatns Raffles, while the continental 

 birds south of Aracan are C. m. inalacceiisis. The present series 

 have white on the four outer pairs of tail feathers ; one male from 

 Tasan has it on five, one female from Tastin on three pairs only. 



!• Gyldcnslolpo, Kiingl. Sv. Vet. Akad. Handl. M. Baker, Journ. N. H. Boc. Siam, iii, 1919. 



56, No. -2, 1916. tflrxt i«irll. 



if. lldliiiisou. .Iiiurn. K. M. S. Mus. vii, 1917 Baker, Journ. X. H. Soc. Siam, iii, 1919. 



K. KloNs, Ibis, 1918. (second part). 



L. Hobiuson and Kloss, Journ. N.H. Soe. Siam, M.I. Baker, Journ. N. H. Soe. Siam. iv, 1920. 



iii, 1919. (third part). 



VOL. V, NO. 2, 1922. 



