World Bird List

Species factsheet
Green Imperial Pigeon (Ducula aenea)

Order: Ducula aenea
Family: Pigeons, Doves (Columbidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
sylvatica n India and Nepal to s China to Thailand, and Indochina
pusilla s India, Sri Lanka
andamanica Andaman Is.
consobrina islands of w Sumatra except Enggano
oenothorax Enggano I. (sw of Sumatra)
polia Malay Pen. to Greater and Lesser Sundas
palawanensis Banggi I. (n Borneo) to Palawan and nearby islands (sw Philippines)
fugaensis n Philippines (Calayan, Camiguin Norte and Fuga Is.)
nuchalis n Luzon (n Philippines)
aenea Philippines (other than northern Luzon and Palawan).
intermedia Talaud and Sangihe Is.
paulina Sulawesi, Togian, Banggai and Sula Is.