10 
Birds of Celebes: Falconidae. 
“Eurunbalu”, Tjamba, S. Celebes, Platen h 4. 
“Sikep burik sedang”, juv. Manado, Nat. Coll. 
Figures and descriptions. Wall. II; Schl. IF, i, 6\ Sharpe 7; Brliggem. S; W. Bias, h 6. 
Adult male. Head, neck, cheeks and ear -coverts hlue-grey, shafts of the feathers 
dark; rest of upper surface; including primaries, warm (Prout’s) hrown with a 
purple gloss in certain lights; upper tail-coverts washed with slaty; tail crossed with 
four hands of blackish, the basal one concealed and imperfect; chin and throat 
wliite, bounded on either side by a malar streak of slaty black and marked down 
the middle with a stripe of the same colour; underparts white, uniform on the 
lower abdomen and under tail-coverts, but marked on breast, sides and abdomen 
with broad longitudinal streaks of blackish brown, and closely barred on thighs and 
flanks with blackish; under wing-coverts white; quills below white, at 
distal ends brown, and imperfectly crossed with about four narrow bars of dusky 
((I', Burukan, N. Celebes: April 1894: P. & P. Sarasin). 
Adult female. Much like the male, but larger; the head browner grey, upper surface paler 
brown; the white of the under surface more tinged with buff, and the longitudinal 
stripes thereon warm dark brown (Prout’s); the dusky bars on the thighs and flanks 
broader; five bars (instead of four) generally distinguishable on the tail — the two 
basal ones more or less obliterated and concealed; under wing-coverts white, with 
a few brown spots on them — sometimes also seen in the male ( Q ad. , Kema, 
N. Celebes, 30^^ Aug. 1893: P. & P. Sarasin). 
“Iris gold-yellow; feet yellow; cere greenish yellow; bill grey-blue” [Q — 
Sarasin). 
Young. Above warm dark brown, with whitish terminal edges to the feathers, the middle 
and lateral parts of the feathers more buff-brown; head above blacker brown, with 
whitish tips; face and under surface white, sometimes a lm ost unstriped with 
brown, usually striped with dark brown, chiefly along the mesial part of the feathers 
of the breast, and stained (as it ajapears) with a weak solution of the same brown 
chiefly on the face and breast; the thighs with dark transverse spots and bars; 
5—6 dark bars on the tail, basally indistinct (^ juv.. Lake Matanna, 8. E. Central 
Celebes, 27. H. 96: P. & P. Sarasin; and other examples). 
"Iris yellow ; cere greenish ; legs green-yellow, on the shins dark” (P. & P. 8.). 
Measurements. 
AVing 
Tail 
Tarsus 
Oulmen 
from cere 
a. (Nr. 6701) ad. Minahassa, N. Cel. (v. Musschenbroek) 
206 
180 
56 

b. (Nr. 6703) [(!'] ad. Grorontalo, N. Cel. (Biedel) . . . 
183 
157 
49 
— 
c. (Sarasin Coll.) Q ad. Kema, N. Cel., 30. YIH. 93 . 
200 
160 
54 
18 
d. (Sarasin Coll.) Q ad. Tomohon, N. Cel., 2. YIII. 94 
204 
170 
— 
17;5 
e. (Sarasin Coll.) (Y ad. Burukan, N. Cel., lY. 94 
176 
142 
46 
15 
f. (Sarasin Coll.) cl ad. Lake Limbotto, N.Ceh, 18. HI. 95 
181 
141 
— 
16.5 
g. (Sarasin Coll.) cf ad. Lake Towuti, S.E. Cel., 3. HI. 96 
182 
142 
— 
14.5 
h. (Sarasin Coll.) "(f” [? 2] j. Mapane, C. Cel.,3. HI. 95 
200 
168 
— 
17.5 
i. (Sarasin Coll.) cf j. Lake Matanna, C. Cel., 27. H. 96 
195 
161 
— 
17 
j. [c 10847) juv. Minahassa, YIH.-IX. 92 (Nat. Coll.) . 
203 
164 
54 
18 
k. (c 13454) juv. Minahassa, 15. YHI. 94 (Nat. Coll.) . 
200 
165 
— 
16.5 
