Medium-sized typical nightjar with a rufous collar. Both sexes have a small pale mark in the outer wing and a large one in the outer tail. These marks are larger in males and smaller in females. Found in a variety of highland habitats, including forest clearings and edges, grassland, cultivation, and heath. Calls include a distinctive pair of high, tremulous whistles: “treeue-cheeew”, and a guttural “chunk”. Separated from other nightjars in its range by its highland habitat, the extensive white in the outer tail, and the distinctive voice.