182 
Birds of Celebes: Cuculidae. 
58. HIEROCOCCYX CRASSIROSTRIS Tweedd. 
Blunt-winged Cuckoo. 
Hierococcyx crassirostris (1) Wald., Ann. & Mag, N.H. 1872, 305; (II) id., Tr. Z. S. 1872, 
Ym, 116, pi. 13; (3) Meyer, J. f. O. 1873, 405; (4) Platen, Cefied. Welt 1887, 
219; (5) Shelley, Cat. B. XIX, 1891, 239; (6) M. & Wg., Ahh. Mus. Dresd. 1895, 
Xr. 8, p. 6. 
a. Cueulus crassirostris (1) Briigg., Ahh. Ver. Bremen, 1876, Y, 59. 
“Kokokuk” (meaning simply a Cuckoo), Tondano, Xat. Coll. 
Figure and description. Walden ZZ, 7; Shelley 5. 
Adult. Head, neck, ear-coverts, and cheeks rather pale slate-grey; upper surface 
dark rufous brown, the margins of the wings mottled with russet, the rump and upper 
tail-coverts redder and obscurely tipped with grey like the head; metacarpal joint 
white; tail rufous brown, brighter than the hack, tipped with white and crossed with 
three or four broad hands of black, the interspaces on the more lateral feathers chiefly 
white or white mingled with rufous, the middle feathers all rufous brown with a broad 
terminal band of black and a black spot indicating another hand with a small spot 
of white adjoining; under surface white, thickly barred with slaty black on chin 
and throat, with purer black across chest, breast, sides and flanks; under tail- and 
wing-coverts white, the latter with a brown spot here and there at the edge of wing 
and on the longer series; quills below broccoli -brown, white towards base (near 
Tondano, Aug. — Sept. 1892 — C 10796). 
“Bill black, at base of lower mandible yellow; hare skin round the eyes gold- 
yellow; feet gold-yellow”. Other adult specimens (all marked (Z^) for the loan of one 
of which we are indebted to Mr. Xehrkorn, while the others are in the Sara sin 
Collection, are like the above. “Iris brown; hill black, below yellow -green; orbits 
and feet light yellow” (Purukan, 2. XI. 84 — Platen in Mus. Xehrk. Xr. 931). 
Immature. Differs from the adult in having the head above brownish slaty; neck and upper 
surface chestnut (i. e. hghter and redder), some remains of dark bars on the tertiaries 
above; below huffy — not pure — white, plentifully barred with blackish brown, 
except on under wing- and tail-coverts (Minahassa — Xr. 2207). Tliis is like fig. 2 
of Lord Walden’s plate, but the under surface is more tluckly barred. As Captain 
Shelley points out, the tail in this figure conveys a wrong impression, the two middle 
feathers being lost; there is no white except at the tip on the middle tail-feather 
(there is only one remaining) of our specimen, though the shaft is pale at one spot. 
Young. A younger specimen in the Xehrkorn Coll. (Xr. 930 — Purukan, 10. XI. 84: Platen) 
differs from that described in being still paler rufous brown above, with the mantle 
indistinctly spotted; below still more thickly barred with black. “Iris brown; bill 
brown, below yellow-green; orbits and feet light yellow”. 
Measurements. 
Wing 
Tail 
Tarsus 
Bill from 
nostril 
a. (C 10796) ad. Tondano 
208 
170(c) 
24 
21 
h. (Mus. Xehrk. Xr. 931) ad. Purukan 
203 
177 
24 
— 
c. (ih. Xr. 930) juv. Purukan 
198 
170 
23 
19 
d. (Xr. 2207) juv. Minahassa 
200 
175(c) 
23 
20 
e. (Sara sin Coll.) cf ad. Kema, 23. X. 93 
208 
180(c) 
25 
20 
f. (Sarasin Coll.) vix ad. Loka, S. Cel., 31. XI. 95 . 
202 
— 
24 
19.5 
g. (Sarasin Coll.) (Y ad. Matanna-Tomori, 7. IH. 96 
216 
— 
26 1 
20 
