World Bird List

Species factsheet
Blackish Cuckooshrike (Edolisoma coerulescens)

Order: Edolisoma coerulescens
Family: Cuckooshrikes (Campephagidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
coerulescens Luzon and Catanduanes (n Philippines)
deschauenseei Marinduque (nc Philippines)
alterum Cebu (c Philippines)
Annoncer