32 
Mr. R. B. Sharpens Contributions to the 
headed brown dress to the female plumage; and this stage is 
therefore probably assumed by a moult. 
2. Astur trivirgatus (Temm.); Salvad. 1. c. p. 17. 
a. No. 12. $ . Sibu, June 12, 1874. Iris bright orange; 
legs yellow. 
b. £. Sibu, Aug. 1874. Iiis chrome; legs and feet ochre- 
ous; bill blacky the base greenish yellow; lores greenish yel¬ 
low. “Draco volans in gizzard.” 
The male is in younger plumage than the female; though 
neither are very old; and a corresponding difference in the 
soft parts is to be noted. 
3. Spilornis palliduS; Walden ; Sharpe, Cat. B. i. p. 290, 
pi. ix. 
Spiloi'nis bacha (Baud.); Salvad. /. c. p. 7. 
a. No. 19. <$. Sibu, Nov. 1874. Iris chrome-yellow; 
legs dirty ochre; bill dark leaden; “ antorbital patch to cere 
brownish yellow-orange.” 
4. Haliastur intermedius, Guru.; Sharpe, Cat. B. i. 
p. 314. 
Haliastur Indus (Bodd.) ; Salvad. 1. c. p. 12. 
a. “No. 158. . Sibu Island, April 28, 1874. Iris 
dark chocolate; feet pale greenish yellow; bill black.” 
The specimen sent is in immature plumage. 
5. Microhierax fringillarius (Drap.) ; Sharpe, Cat. B. 
i. p. 368. 
Hierax ccerulescens, Salvad. 1. c. p. 3. 
a, b, c. No. 196. g . Sibu, July 1874. “ Iris chocolate.” 
The three specimens sent by Mr. Everett are apparently 
all rather young, as they have the forehead, cheeks, and eye¬ 
brow stained with orange. 
6. Polioaetus humilis (Mull. & Schl.); Salvad. 1. c. p. 6. 
a. “No. 157. . Sibu, Aug. 14, 1874. Iris bright yel¬ 
low ; feet and tarsi pale blue.” 
This is a very interesting occurrence, as Count Salvadori 
first included the species in his work on the probability of its 
occurring in Borneo, as it had been found in the neighbour- 
