312. COLLOCALIA LOWI (Sharpe).
LOW’S SWIFTLET.
- Cypselus lowi Sharpe, Proc. Zool. Soc. (1879), 333.
- Collocalia lowi Hartert, Cat. Birds Brit. Mus. (1892), 16, 498; Sharpe, Hand-List (1900), 2, 89; Oates and Reid, Cat. Birds’ Eggs (1903), 3, 75; Oberholser, Proc. Acad. Nat. Sci. Philad. (1906), 58, 190.
- Salangana lowi McGregor and Worcester, Hand-List (1906), 58.
Palawan (Everett, Whitehead, Steere Exp.). Northern Borneo, Anamba Islands, accidental in Sumatra and on Nias Island.
Adult.—“Upper surface sooty black with a little greenish gloss, somewhat purplish on the tail; lower surface brownish gray, with somewhat darker shaft-stripes; feathers in front of eye white, broadly tipped with black; under wing-coverts blackish. Length, about 127; bill at base, 5; wing, 135; tail, 51; nearly quite even; tarsus, 102; thinly but obviously feathered if not abraded by the string of the label.” (Hartert.)
Young.—Similar to the adult.
Everett found nesting colonies of Low’s swiftlet in Palawan and in northern Borneo during the month of October; the nests were made of moss and were fastened to the walls of caves with dry saliva.
313. COLLOCALIA WHITEHEADI Grant.
WHITEHEAD’S SWIFTLET.
- Collocalia whiteheadi Grant, Ibis (1895), 459; Sharpe, Hand-List (1900), 2, 89; Oberholser, Proc. Acad. Nat. Sci. Philad. (1906), 58, 192.
- Salangana whiteheadi McGregor and Worcester, Hand-List (1906), 58.
- Collocalia unicolor amelis Oberholser, Proc. Acad. Nat. Sci. Philad. (1906), 58, 193.