Sombre Nightjar Caprimulgus fraenatus

A medium-sized typical nightjar with a golden-buff collar. Both sexes have small pale marks in the outer wings and at the corners of the tail. These are larger and whiter on males, and smaller and more buffy in females. Generally local and uncommon in savanna and grassland habitats, often in rocky areas. Similar to Nubian Nightjar, but darker overall, with less rufous in the wings. Also similar to many other nightjars, and best identified by voice. Call is a high-pitched, mechanical trill, similar to that of Plain Nightjar, but slightly lower-pitched.