Birds of Celebes: Falconidae. 
5 
alDdonien the white bars are broader and the brown ones narrower, and the barring 
on the lower breast is better defined than in the other sex; under tail- coverts white 
(in one specimen slightly barred towards the tip). The females of Sula have the 
under tail- coverts barred and in regard to the barring of the under surface would 
appear to resemble the males of Celebes, but there are only one or two males 
with the sex satisfactorily ascertained in the Leyden Museum for comparison. 
The female of Celebes is more spotted below. 
3. Spilornis mfipectus ^ sulaensis. 
g. Spilornis sulaensis (1) M. &Wg., Abb. Mus. Dresden 1896 no. 2, p. 7. 
“Alaji Kabut”, Peling; “Alaji”, Banggai, Nat. Coll. 
Diagnosis. Intermediate between the typical S. rufipectus and 8. rufipectus sulaensis^ but on 
the whole more like the latter race. 
Distribution. Peling group between Sula and E. Celebes: — Peling and Banggai (Nat. Coll.). 
Measurements. 
"Wing 
Tail 
Tarsus 
Culmen 
from cere 
(Nr. 668'^) [Q] North Celebes 
370-5 
250 
79 
28 
(Nr. 2199) [$] North Celebes 
340-4 
250 
74 
26 
(C846) [$] N. Celebes, March 1871 (Meyer). 
. . . » 
360 
240 
75 
— 
[C 10844) [§] N. Celebes, Aug. — Sej)t. 92 (Nat. Coll.) . . 
344 
230 
74 
27 
[C 10845) [Q] N. Celebes, Aug. — Sept. 92 (Nat. Coll.) . . 
353 
236 
74 
27.5 
(Sarasin Coll.) (fi, N. Celebes, 20. Oct. 93 (P. & F. S.) . 
340 
230 
78 
25.5 
(Sarasin Coll.) (fi, N. Celebes, 6. Oct. 94 (P. 
& F. S.) . 
342 
242 
78 
27 
(Sarasin Coll.) cy' juv., N. Celebes, 5. Aug. 93 (P. &F. S.) 
337 
230 
73 
27 
(C 14247) [(fi] Lembehid. March 95 (Nat. Coll.). . . . 
337 
218 
73 
25 
{C 10708) cf, South Celebes, 6. May 78 (Platen) . . . 
330 
215 
75 
28 
{C 10707) (fi, South Celebes, 12. March 78 (Platen) . . 
325 
220 
73 
27.5 
(Schliiter Coll.) Q, South Celebes (Platen) 
• 
344 
229 
72 
— 
(Sarasin Coll.) (f, South Celebes, 21. Sept. 95 
(P. &F. S.) 
322 
223 
74 
29 
(Sarasin Coll.) juv., S. Celebes, 12. Sept. 95 
(P. &F. S.) 
332 
232 
70 
26 
(Sarasin Coll.) g, Centr. C., Palopo, 21. Jan. 95 
(P.&F.S.) 
328 
— 
72 
28 
[C 14295) [$], East Celebes, May- Aug. 95 (Nat. Coll.). . 
363 
236 
78 
— 
(Norwich Mus.) ad. Macassar (Wallace). . 
(Norwich Mus.) ad. Macassar (Wallace) 
Commu- 
345 
345 
— 
71 
71 
— 
(Norwich Mus.( ad. Macassar (Wallace) 
nicated 
338 
— 
69 
— 
(Norwich Mus.) ad. Macassar (Wallace) . 
> 
by Mr. 
345 
— 
76 
— 
(Norwich Mus.) imm. N. Celebes (Meyer) . 
Gurney : 
345 
— 
71 
— 
(Norwich Mus.) vix ad. N. Celebes (Whitely) 
355 
— 
76 
— 
5 adults, Peling Id., V— VIK 95 (Nat. Coll.) 
.... 
312-38 
— 
— 

4 adults, 2 juv. Banggai Id., VI. 95 (Nat. Coll.). . . , 
305-25 
— 
— 
— 
(Norwich Mus.) (J', Sula Islands 
314 
221 
73 
27 
(Norwich Mus.) Q juv., Sula Islands . . . 
305 
220 
72 
26 
0 As will be found more fully explained under the heading: Haliastur indus, a 
long connecting hyphen 
[e. g. S. rufipectus — sulaensis) is used in this work to indicate the connecting forms between subspecies; or, 
where it may be safely said that such individuals have stronger leanings to one subspecies than to the other, 
the sign > or <[, respectively [S. rufipectus sulaensis) indicating that the affinities are more with the typical 
form, or [S. rufipectus < sulaensis) with the latter form. 
