Pachycephala flavifrons
Pachycephala flavifrons, vulgo sibilator Samoensis (Samoane vasavasa; Anglice Samoan whistler), est avis familiae Pachycephalidarum, solum in Insulis Samoanis endemicus. Humidos montanos tropicos subtropicosque habitat.

Bibliographia
 Mayr, Ernst. 1945. Birds of the Southwest Pacific: Field Guide to the Birds of the Area between Samoa, New Caledonia, and Micronesia. Novi Eboraci: Macmillan.
 2006 Ruber IUCN Specierum Vulnerabilium Index

Aves Samoae
Aves Samoae Americanae
Pachycephala
Taxa Peale
Taxa 1848