FROM SIKKIM, BHUTAN, TIBET. 483 



Spizaetus kieneri. 



A young bird, apparently in changing plumage, differs from 

 the adult in being browner and less uniform iu colour above, and 

 in almost wanting the ferruginous abdomen and the stripes on 

 the lower plumage. In still younger birds there is probably no 

 trace of either. The following is a description of the plumage : — 



Upper parts blackish brown ; most of the feathers with slightly 

 paler margins, and some of the buffy white basal portions of 

 the feathers shewing about the back of the neck ; rump hair- 

 brown, a distinct buff supercilium running back to the nape, 

 and the forehead buff; cheeks below the eye with elongated 

 black spots; ear-coverts blackish brown; primaries obsoletely 

 banded outside, distinctly within ; central rectrices blackish 

 with scarcely distinct narrow black transverse bands ; outer tail 

 feathers paler and transversely banded with black ; lower 

 parts buffy white, a few lanceolate streaks on the lower neck 

 and sides of the breast, and the shafts of the abdominal feathers 

 black, forming very narrow lines. A little ferruginous on the 

 belly ; thigh-coverts dull ferruginous ; flanks black behind and 

 ferruginous in front, with broad black central streaks to the fea- 

 thers ; under side of wing white. Wing, 1525 ; tail, 8'25 ; bill 

 from gape, 1*4. The specimen was obtained in Native Sikkim in 

 April 1876. 



Bulaca newarensis. 



A nestling of this species, about half grown, has the feathers 

 of the crown and hind-neck earthy brown, with broad fluffy 

 dirty-white edges ; ruff deep wood brown with a purplish 

 tinge ; cheeks behind eye pale wood brown ; loral bristles and 

 bristly feathers around eye nearly black ; feathers of back, 

 rump and wing-coverts light brown, banded with buffy white, 

 and with finer white tips ; rectrices hair-brown, banded with 

 regular narrow transverse paler bars, which are closer together 

 and paler in colour towards the end, and the extreme tips are 

 white ; primaries hair-brown, with paler transverse bands, those 

 on the outer webs not corresponding to those on the inner, the 

 bars being closer together towards the tips, which is white ; 

 secondaries paler, and the bars closer together ; chin bristles 

 blackish ; behind them are some earthy brown feathers with 

 pale margins ; throat pure white, and all the remaining portion 

 of the under parts, including the thigh covers, dirty white, with 

 a tendency to dark bands on the flanks. Wing, 11 ; tail 6 inches. 



Cuculus striatus (G. Himalayamis, Vigors.) 0. mi- 



cropterus. 



It has been frequently pointed out that these closely-allied 

 species may always be distinguished by the size of the bills. 



b 12 



