Edoliosoma alterum Ramsay, Ibis (1881), 34.
Edoliisoma alterum Sharpe, Hand-List (1901), 3, 294; McGregor
and Worcester, Hand-List (1906), 77.
Cebu (Everett, Bourns & Worcester, McGregor).
Male.--Very similar to the male of E. cærulescens being entirely black;
all the plumage slightly glossed with dark green. Iris brown; bill,
legs, and nails black. Length, about 260; measurements of four males,
wing, 126 to 136; tail, 110 to 120; bill from nostril, 18 to 19;
depth of bill at angle of gonys, 8 to 9.
Female.--Similar to the female of E. cærulescens, but much lighter;
head, neck, and body slate-gray, somewhat darker above than below;
two or three pairs of outer tail-feathers tipped with gray. Wing, 130;
tail, 117; culmen from base, 25; bill from nostril, 19; tarsus, 22.
"This cuckoo shrike is fairly common in Cebu; it usually frequents
high trees in forest where it may be found in small flocks. Seven
males average: Length, 260; wing, 129; tail, 120; culmen, 28; tarsus,
23; middle toe with claw, 23. Four females, length, 249; wing, 120;
tail, 113; culmen, 28; tarsus, 22; middle toe with claw, 21. Iris
dark brown; bill, legs, feet, and nails black. Food in one case large
caterpillars." (Bourns and Worcester MS.)