Slaty Cuckoo-shrike Coracina schistacea

A large, heavy-billed songbird. Male is uniform slaty gray with a black crown, throat, and chest. Female is entirely slaty gray with no black markings. Singles and pairs inhabit forests and edges, including mangroves. Confined to the Banggai and Sula Islands. Bigger and heavier-billed than Sula and Common Cicadabirds, and lacks extensive pale edgings in wings. Differentiated from cicadabirds by male’s black crown and female’s lack of black facial markings. Vocalizations include a nasal “weeerrr,” repeated soft “chuk” notes, and a short buzzing rattle, “clrrrrrr.”