Siffleur des Palau Pachycephala tenebrosa

A rather small, mostly drab passerine. Male has a brownish-olive body with a darker hood and chest and a thick dark bill. Female is mostly drab brownish-olive. Dwells on the ground and in forest understory in deep primary forest. Similar to Dusky White-eye but larger, with a thicker bill. Smaller and paler than Micronesian Starling, with a dark eye. Song includes a varied mix of whistler-like staccato chirps, whistles, and rasps.