A large, extremely long-tailed, dark and glossy starling. Sometimes looks black, but in good light shows iridescence that is mostly blue-green, with a purple belly and tail. Found in a wide variety of savanna habitats as well as in cultivated areas. Often on the ground, typically in small flocks. Similar to Rüppell's Starling, but longer-tailed and more blue-green overall. The loud and complex vocalizations include a mix of rattles, scratches, and piercing whistles.