A sturdy songbird with fairly long tail, substantial bill. Glossy black above, bright white below. Female may show a buffy patch on upper breast. Similar to Restless Flycatcher; best identified by range. Inhabits wetlands, foraging near the ground/water. Compare Willie Wagtail. Calls loudly with a clear whistled "tui-tui-tui” and an incomparable buzzing scissors-grinder sound.