Ornithology of Northern Borneo. 0)7 



grey, with six broad blackish bars; the upper tail-coverts 

 are white, with smaller rufous spots. The under surface is 

 white or bufFy white, with broad brown streaks. In this 

 first stage for the first time appears grey in the wing-coverts. 

 It has a shoulder-mark. From the above stage to the fully 

 adult there seems to be one more moult, when the streaks 

 below become paler and narrower, and are in many feathers 

 arrow-head shaped. The whole plumage becomes lighter 

 above, the upper tail-coverts pure white, with scarcely any 

 spots; the tail-feathers pure grey, the centre ones with six 

 dusky grey bars ; outer feathers also grey and similarly 

 barred, but the bars tinged with rufous. The gi'cy on the 

 wing and the grey shoulder-patch are well developed, but 

 there is none of the spotting on the back which characterizes 

 the final stage. 



The last plumage has a uniform tail and nearly uniform 

 quills. The under surface is white, with streaks on the 

 throat and breast. 



[a. ^ ad. Abai. Iris bright yellow ; feet dull stiaw- 

 yellow. 



b. Ad. Labuan. Shot during my absence on the first ex- 



pedition to Kina Balu, between the months of February 

 and April. 



c. $ . Abai, Feb. 19, 1886. This bird seems too small to 



be a female, but was certainly one by dissection. 



d. S • Abai, Feb. 22, 1886. 



e. ? . Abai, Feb. 22, 1886. 



/. ? juv. Lawas River, April 5, 1886. 

 g, h. Juv. Labuan, Nov. 30, 1885. 



i. ? juv. Paulou Sebang, Malacca, Feb. 9, 1885. Iris 

 light sepia ; feet dull chrome-yellow.] 



2. ASTUR TRIVIRGATUS. 



Astur trivirgatus (T.) ; Sharpe, Cat. B. i. p. 105 ; Salvad. 

 Ucc. Born. p. 17 (1874) ; Sharpe, Ibis, 1876, p. 32, 1879, 

 p. 235. 



