THE BIRDS OF NORTHERN THAILAND 67 



Adults have the crown and short nuchal crest brownish black ; the 

 upperparts dark brown; the exposed portion of the rounded tail 

 crossed by four blackish bars; the throat white with a broad black- 

 ish mesial streak; the remaining underparts white, with broad 

 rufous-brown streaks on the breast, rufous-brown bars elsewhere. 

 Immatures have the feathers of the head and nape edged pale rufous ; 

 the underparts buffy white, with a blackish mesial stripe on the throat, 

 broad blackish streaks on the breast, and similar streaks of brown on 

 the sides of the body ; the thighs thickly barred brown and buffy. The 

 fourth primary is longest, the fifth subequal. 



ACCIPITER VIRGATUS AFFINIS Hodgson 



Nepalese Besra 



[Accipiter] affinis Parbattiah [=Hodgson], Bengal Sporting Mag., new ser. 

 vol. 8, 1836, p. 179 (Nepal). 



I have twice taken this bird at Chiang Mai: an immature male, 

 November 25, 1935, and an adult male, February 29, 1936. It is 

 probably only a winter visitor. 



The immature specimen had the irides deep yellow ; the eyelids yel- 

 low ; the cere, lores, and rictus olive-green ; the bill black, plumbeous 

 at the base ; the tarsi dull olive in front, bright yellow behind ; the toes 

 bright yellow ; the claws black. The adult had the irides orange, but 

 I have no record of the colors of other soft parts. 



The adult male has the upperparts dark slate ; the exposed portion 

 of the s^ware-tipped tail with four broad blackish bands, the basal 

 sometimes concealed by the coverts; the throat white, with a broad 

 blackish mesial stripe; the upper breast pale rufous, barred with white 

 in the center; the remaining underparts white, with fairly broad 

 pale rufous bars; the under tail coverts white. The adult female dif- 

 fers in having the upperparts dark brown, blackish on the head and 

 nape. Immatures have the upperparts dark brown with four broad 

 blackish bands across the tail ; the throat white, with a broad black- 

 ish mesial stripe; the remaining underparts boldly streaked black 

 and dull rufous on the breast, barred dull rufous on the abdomen. 

 The fourth and fifth primaries are longest and equal. 



ACCIPITER VIRGATUS GULARIS (Temminck and Schlegel) 



Japanese Besra 



Astur (Nisus) gularis Temminck and Schlegel, in Siebold, Fauna Japonica, Aves, 



1850 [=1844], pp. 5-6, col. pi. 2 (Japan). 

 Accipiter virgatus, Gyldenstolpe, Journ. Nat. Hist. Soc. Siam, 1915, p. 234 



(listed). 

 Accipiter virgatus virgatus, Gyldenstolpe, Ibis, 1920, p. 746 (Khun Tan). 



