18 
Birds of Celebes: Falconidae. 
A second specimen, moulting (male), is similar to that described, and a 
few brown feathers of immaturity among the scapulars and secondaries reveal the 
fact that the pale vinaceous under surface of this form (known as T. cucidoides] is 
not a result of age, but is assumed as the young di’css is cast off. “Lns dark brown; 
cere orange; feet gold yellow” (cy', Kema, K Celebes, 3. Oct. 93; P. & F. Sarasin). 
Adult in more rufous plumage: “Asfur sohensh”. Similar to the first- 
described bird, but darker slaty above; the jugulum and breast rufous, obscurely 
barred, the bars becoming more distinct on the flanks (Main, N. Celebes, 28. Feb. 
1894: Nat. Coll. C 13239). 
A young specimen (moulting), assuming adult plumage of the 
rufous form, has the head, neck and mantle, and single feathers on the scapulars 
and lower back, dark slate ; the wings (mmiy remiges lost), tail, and other upper parts 
in the brown plumage of the young; the breast (adult) deep rufous (Manado tua Id., 
end of May, 1894; Nat. Goll. C 13355). 
Young. Very different from the adult: above brown (instead of slaty), darkest on head; 
below white, broadly streaked on the breast with rufous, and barred on the abdomen, 
flanks and tliighs with paler rufous. 
A young specimen — $, Mindoro — kindly lent to us by Mr. Nehrkorn 
resembles Sc hi eg el’s figure (e II), but the streaks on the breast are larger and 
broader; the upper surface more unifonn; ear-coverts without any grey wash; 
head dark clove-brown — almost black. 
Eggs. Similar to those of Accipiter nisus, white with a few dark brown convolutions and 
blots at the small end: 39 X 30 mm (Nehrkorn in litt.). 
Measurements. 
Wing 
Tail 
Tarsus 
Culmeii 
of cere 
a. (C 10480) ad. Celebes 
198 
130 
45 
13 
h. (Nr. 6726) ?ad. Sangi 
198 
132 
44 
13 
c. (C 13753) ad. Talaut Is., Nov. 1894 Nat. Coll. . . 
190 
130 
42 
12.5 
d. (0 13239) ad. Minahassa, Feb. 94 iid 
199 
133 
43 
13.5 
e. (C 1 3358) vix ad. Manado tua Id., May 94 iid. . . , 

133 
44 
13.5 
f. (Sarasin Coll.) (f vix ad. IVCnahassa, 3. Oct. 93 (P. &F. S.) 
190 
126 
43 
12 
Distribution. North China, Amoy, Foochow, Tientsin, Pescadores, etc. (Fortune g 1, Swinhoe 
g 2, g 3]-, Tenasserim (Davison c 2, Bingham cS); Nicobar Islands; Malacca; 
Sumatra; Java; Philippines — Mindoro (Mus. Nehrkorn; Salvad. 2; Schl e 1, e ,3); 
Palawan (Platen); Borneo (Mottley 2, Ussher, Whitehead c 6, c 7); Talaut 
Islands — Karkellang (Nat. Coll.); Sangi (v. Eosenb., Hoedt e 2; Meyer); Siao 
(Hoedt e 2); Celebes — Northern Peninsula (Forsten el, Eosenh, e 8, Meyer 
f 3, f 4, Guillemard c 5)\ 8nla Islands — Sula Besi (Bernst. , Hoedt e 2); Hal- 
mahera; Ternate; Batchian; Morty; Gagie; ? New Guinea (Salvad, 2); Waigiou 
(Platen 5). 
Some strong grounds have been given for separating A. cuculokles Temm. 
from A. soloensis Horsf. as a distinct species. Dr. E. B. Sharpe {k I) distin- 
guishes A. cuculoides chiefly by its pale vinous under surface mixed with ashy, 
and pure white under wing-coverts, from A. soloensis in which these parts are 
vinous-chestnut and huffy white, respectively. The late J. H. Gurney (1) adds 
from information supplied by Swinhoe, in whose cabinet he wms able to exa- 
