100 Mr. H. E. Dresser on Eurystoraus orientalis. 



that of E. orientalis as 7*4, and that of E. colony x as also 7*4 ; 

 therefore by his own showing E. Icetior is the largest of the 

 three.. 



As regards the richness of coloration on the underparts and 

 the blackness of the head, the richest-coloured specimens in 

 the series before me are certainly those from Borneo and the 

 Philippines, and there are several specimens from the latter 

 group of islands which agree closely with Mr. Sharpens descrip- 

 tion. I have examined two specimens from Ceylon, both of 

 which agree with the form he names E. calonyx rather than 

 with E. Icetior. The form described under the name of E. 

 calonyx, he states, differs from E. orientalis in having " the 

 end of the tail black washed with purplish blue, and the 

 whole of the black secondaries also washed with purplish 

 blue ;" and he gives its habitat as the " Himalayan Terai from 

 Kumaon to Darjiling and Upper Assam, probably breeding 

 throughout the whole of this range . . . from the Sardah to 

 the Ganges, but particularly abundant in the Kotree Doon ; 

 found in summer in Eastern Siberia and Northern China, 

 and appears to winter in Southern Tenasserim and the Ma- 

 layan Peninsula, Malacca, &c.'^ 



In the series before me there is one specimen from Amoy 

 which agrees closely with his description of E. orientalis 

 and not with E. calonyx, and one from Camboja which agrees 

 with Mr. Sharpe's E. calonyx. This latter form certainly 

 not only winters in the Philippines, but bi-eeds there, and is 

 found at all seasons of the year, as there are specimens of it in 

 the Tweeddale Collection obtained in February, March, May, 

 June, July, August, September, and November, It appears 

 that though the present species is partially migratory in the 

 northern portion of its range, it is resident elsewhere. Col. 

 Legge says that it is resident in Ceylon, Mr, Whitehead 

 assures me that it is resident in all parts of the Malayan 

 Archipelago that he visited, and it appears also to be a 

 resident in the Andamans and Philippines. 



In order to show more clearly the forms which are found 

 in the different localities, I give the following tabulated 

 results of a comparison of the 64 specimens now before 



