The red-necked nightjar (Caprimulgus ruficollis) is the largest of the nightjars occurring in Europe. It breeds in Iberia and North Africa, and winters in tropical West Africa. The variegated plumage resembles the European nightjar. The adult is lichen-grey, barred and streaked with buff, chestnut and black. The underparts are barred. It is larger and longer-tailed than the more widespread species, and has a rufous neck-collar. Both sexes have white wing spots, tail sides and throat. During the day this nightjar lies silent upon the ground, concealed by its plumage; it is difficult to detect, looking like a bit of lichen-covered twig or a fragment of bark. The length is 32 cm, and the wingspan 64 cm. Like other nightjars, it has a wide gape, long wings, soft downy plumage and nocturnal habits.