KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 50- N:0 8. 59 



During my journey I collected four specimens of this biid from different loca- 

 lities botli in Eastern and Northern Siarn. According to the wing nieasiirenients 

 tliere is only a single specimen (cT ^'/2 1912 Den Cliai) which has a wing measuring 

 168 mm., all the other specimens (their wings measuring 156—161 mm. resp.) should 

 then belong to R. tristis hainanus Hart. 



According to this I therefore refer the Siamese birds to belong to the sub- 

 specific form Rhopodyles trisUs hainanus Hart. and it is only to be regretted that 

 it has got a name which could perhaps be misgiving about the geographical distribu- 

 tion of the species. 



(^ ^Vi 1912 Noii Luum. i V2 1912 Baug Hue Horn. 



Length =535 mm. Length =565 mm. 



Wing =156 » Wing =156 » 



^ i-Va 1912 Baug Hue Hom. J" ^V^ 1912 Den Cbai. 



Length =612 mm. Length =595 mm. 



Wing =161 » Wing =168 » 



123. Centropus sinensis Steph. — The Coucal or Crow-Pheasant as this bird 

 is called by the English was rather common över the whole coantry, except in the 

 primeval forests. In bamboo- and secondary jungles I found this bird in great 

 numbers though it was difficult to catch sight of owing to its habit of always escaping 

 in to tliick and almost impenetrable bushwood, as soon as it was disturbed. It 

 seems to live on the ground more than up in the trees. Its note is a peculiar 

 »Poot, poot» repeated many times and generally heard in the evenings. 



<^ 171 1912 Sakerat. $ '»/s 1912 Fak Pan. 



Length =465 mm. Length =455 mm. 



Wing = 189 » Wing = 189 » 



Tail =251 * Tall =265 » 



Culmen = 35 » Culmen = 34 » 



Iris == red. 



124. Centropus bengalensis Blyth. — The Lesser Coucal was much rarer 

 than the preceding species and I only found it in the high grass round the swampy 

 country at Tha Law in Central Siam, and in the grass jungles near Vang Nun 

 in the North. 



It very seldom takes wing and therefore it is difficult to observe in the 

 tangle. 



$ 3/4 1912 Tha l.aw. 



Length = 345 mm. 

 Wing =159 » 

 Tail =185 » 

 Iris = påle brown. 



