Sunda Crow Corvus enca

Medium-sized black crow with a relatively long, slightly decurved bill. Plumage has an iridescent dark blue sheen when seen up close. Bill is notably more slender than that of Large-billed Crow. Favors intact lowland forest and forest edge; generally replaced by Large-billed Crow in more degraded and fragmented habitats. Often encountered as pairs or small flocks in rowing flight over roads, rivers, and clearings. Gives loud nasal caws, often with a rather dry quality. Formerly treated as part of a more generic “Slender-billed Crow” that ranged from the Philippines to Sulawesi; Sunda Crow ranges from the southern Thai-Malay Peninsula and Sumatra to Borneo and Bali.