Taxonomy
There are two subspecies: nominate ruficollis, breeding in Iberia, and desertorum breeding in North Africa. The North African form desertorum is paler than the Iberian one, and has different patterning on the base of its primary feathers: dark and orange bands of approximately equal width, compared to the narrowere orange bands and greater extent of black of ruficollis.
Read more about this topic: Red-necked Nightjar