Ianthoenas griseogularis Walden and Layard, Ibis (1872), 104,
pl. 6.
Columba griseigularis Salvadori, Cat. Birds Brit. Mus. (1893),
21, 313; Sharpe, Hand-List (1899), 1, 72; McGregor and Worcester,
Hand-List (1906), 13.
Bá-lud mai-tim, Manila; bá-duc, Batan.
Basilan (Everett, Bourns & Worcester); Batan (McGregor); Cagayan
Sulu (McGregor); Calayan (McGregor); Guimaras (Layard, Meyer);
Lubang (McGregor); Luzon (Gevers, Whitehead); Mindanao (Steere
Exp., Platen, Goodfellow); Mindoro (McGregor); Negros (Everett,
Whitehead); Romblon (McGregor); Sibutu (Everett); Sibuyan
(McGregor); Sulu (Burbidge); West Bolod (Mearns). Northern Borneo.
Adult (sexes alike).--General color slate-black with metallic purple
or green tips to the feathers; chin, upper throat, and sides of
face below eyes pale gray; head, neck, back, breast, abdomen, and
tips of wing-coverts, and upper and under tail-coverts glossed with
metallic purple changing to green; remiges and rectrices black without
metallic reflections, their coverts largely black with only the tips
metallic; colors change greatly with the angle at which the specimen
is held. Iris bright yellow; base of bill dark red, tip light yellow;
feet and bare space about eye red. Length, 380 to 430; two males,
wing, 248; tail, 161; exposed culmen, 22; tarsus, 28.
Young.--Differs from the adult in having metallic edges of feathers
narrower on body, and wanting on wing-coverts; throat and breast
blackish brown, each feather tipped with cinnamon.
Although of wide distribution, this species does not occur in great
numbers except on the Island of Batan in the Batanes group where many
individuals are caught with bird-lime and sold to visiting ships.
Subfamily MACROPYGINÆ.
Genus MACROPYGIA Swainson, 1837.
Bill small and rather slender; upper part of tarsus slightly feathered;
tail long and greatly graduated; longest and shortest rectrices
differing in length by about half the wing.
Species.
a1. Smaller and lighter, without a vinous wash on breast and abdomen;
dark rufous-brown above. ... tenuirostris (p. 52)
a2. Larger and darker, a faint vinous wash on breast and abdomen;
blackish brown above. ... phæa (p. 53)