108 Mr. W. R. Ogilvie Grant o?i the 



Wing. Tail. Tarsus, 



in. in. in. 



Average measurements oi] 



various birds rano-injr I 



from Dehra Dhoo^ to \ ^-O-S-S 6-7-7-1 2-15-2-2 



Assam j 



From Formosa (Seebohm j 

 f^^^^. ^ i 8-0-8-15 6-G-rr8 2-2 



From Formosa (Norwich I q ^ o o / /-> \ 



,^ , ^ > 8-7 — 2-2 (e.r (jTuruey) 



Mus.) \ 



Adult male. Closely resembles, as regards size and the 

 colour o£ the underparts, the female of the smaller insular 

 form, A. manillensis, Meyen, but may be generally recog- 

 nized by the dark slate-grey colour of the upper parts. 



Wing. Tail. Tarsus. 



in. in. in. 

 Average measurements of i 



various birds from the > 6'5-6"7 5-0-5'5 2'0 

 Himalayas and Pegu . . ! 



From Formosa 69-7-1 5-5-5-6 21 



In ' Stray Feathers/ vol. ix. p. 231, Hume gives the fol- 

 lowing wing-measurements of Himalayan examples which 

 he wrongly refers to A. gularis, T. & S. : — 



in. in. 



Nine males 7-60 to 7-80 



Eight females 8-00 to 8-20 



The measurements of the males are obviously a mistake, 

 and should read — 



in. in. 



Nine males 6-60 to 6-80 



It will be further noted that the Himalayan males are not 

 larger than Formosan males {cf. Gurney, List, App. O, 

 p. 170), just the reverse, but Gurney was misled by Hume's 

 mistake. 



The wing-measurement (8" 7) of the female from Formosa 

 in the Norwich Museum is probably individual if correctly 



