Chibia borneensis Sharpe, Proc. Zool. Soc. (1879), 246; Worcester
and Bourns, Proc. U. S. Nat. Mus. Wash. (1898), 20, 558, no. 298;
McGregor and Worcester, Hand-List (1906), 107.
Chibia pectoralis Guillemard, Proc. Zool. Soc. (1885), 259, 418.
Chibia cagayanensis Mearns, Proc. U. S. Nat. Mus. (1909), 36,
447. [102]
Bongao (Everett); Cagayan Sulu (Guillemard, Mearns); Sibutu
(Everett); Tawi Tawi (Bourns & Worcester). Borneo.
Similar to C. pectoralis (Sula Island), "but it may be recognized on
comparison by the much smaller and more metallic spots on the throat
and fore neck, which are steel-green, as also are the neck-hackles. In
C. pectoralis the spangles are large, dull, and inclined to purplish
in tint. This species appears to me to be a thorough Chibia. * *
*." (Sharpe.)
"The young bird from Kina Balu differs from the adult in being
duller black, with fewer and less metallic chest-spots and
hackles." (Sharpe.) [103]
"Guillemard thought his Cagayan Sulu specimens to be of the same
species with those from Sulu, though he mentions the lack of frontal
plumes in the former. Dr. Sharpe has shown that the Sulu-Tawi Tawi
birds must be referred to C. borneensis, and if Guillemard was right
in believing the Cagayan Sulu birds to be identical with those from
Sulu, C. pectoralis must be excluded from the list of Philippine birds.
"Five males from Sulu average: Length, 284; wing, 150; tail, 132;
culmen, 35; tarsus, 24; middle toe with claw, 26. Eight females,
length, 273; wing, 149; tail, 123; culmen, 32.5; tarsus, 23; middle
toe with claw, 24. Iris chocolate-brown to dark red; bill, legs,
feet, and nails black. Food insects." (Bourns and Worcester MS.)