422 
Birds of Celebes: Campopbagidae. 
tlie mother in the genus EdoUisoma are impressed upon the male young at an 
earlier stage than the acquisitions of the father. In EdoUisoma the paternal char- 
acters are first displayed when the young male assumes its second plumage. 
Sharpe says that the young male of E. nigrum “gradually gains the adult male 
plumage by the double action of a direct moult and by a change of feathe"” 
(Cat. B. IV, 46). "What the very earliest stages of plumage of these Cuckoo- 
shrikes will teach us, we cannot yet know, probably not much. 
In the stomach of a specimen of this bird the Drs. Sarasins found crickets. 
E. mono of Celebes is a very distinct species. It is apparently most nearly related 
to E. talautensis of Talaut and E. salvadorii of Sangi, also to Dr. Sharpe’s 
newly described E. eoereiti of Sooloo, the male of which is said scarcely to 
differ from the male of E. mono, but the female has the entire belly cinereous 
(9), and to E. cmancipata Hart, of Djampea. The male of E. meyeri of Mysore 
is also much like the male of E. morio, but the female is quite different, being 
uniform fulvous rufescent below or with a few' spots, not regularly barred like 
the female of E. morio. Altogether much similarity is found amongst the males 
of EdoUisoma. This may be accounted for on the supposition that the males 
have retained the plumage of a formerly wide-spread species from which the 
females have deviated in various directions. EdoUisoma is a link of questionable 
value between Celebes and the Australian Region. Its occurrence in the Philip- 
pine Islands, Sooloo Islands, and Uap in the Carolines are suggestive of air 
exodus from the east to these islands by flight, of which these birds appear to 
be very capable. 
* 160. EDOLIISOMA SALVADORII SRarpe. 
Sangi Slaty Cuckoo-shrike. 
Plate XXIII. 
Edoliisoma salvadorii (1) Sharpe, Mitth. Mris. Dresden 1878, HI, 367; (2) id.. Cat. B. 1879, 
ly, 48; (3) Meyer, Isis, Dresden 1884, 6, 28; (4) W. Bias., Ornis 1888, 582. 
“Dooi”, Great Sangi, Nat. Coll. 
Descriptions. Sharpe 1, 2. 
Adult male (type of the species). Like the adult male of E. morio (supra), hut the general 
colour duller (slightly smoky) plumbeous slate-grey; chin, throat and chest uniform 
with the under surface, not black; lores and feathers in front of eye black; ear-coverts 
and below the eye blackish (Tabukan, Great Sangi: Meyer — Nr. 13580). Size rather 
larger than E. morm. 
Female. Different from the female of E. morio-. under surface bu% white, broadly barred 
(except on under tail-coverts) with brownish black, instead of deep cinnamon rather 
narrowly barred; middle tail-feathers blackish at the tip only — not the terminal 
fourth black as in E. morio (Great Sangi, [Q], 13““ of March 1893; Nat. Coll. — 
0 12691). 
Immature? Two other specimens which are moulting do not differ from the female, except 
that brown bases to the feathers of the upper surface are apparent, and in one 
