Red-necked Nightjar
Caprimulgus ruficollis
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. Voice: Its call is a repetitive mechanical kyok-kyok-kyok..., which rises and falls as the bird turns its head from side to side. When it churrs, the bird lies or crouches along a branch or rail, but it will sing from a post. During courtship, and occasionally at other times, it uses a mechanical signal, a sharp cracking sound, caused by clapping the wings together over the back.
ID text from Wikipedia, CC BY-SA 4.0
Square-tailed Nightjar
Caprimulgus fossii
Voice: This bird's call is a prolonged churring, which alternates between a fast and slow pace roughly every second. As such it differs from the similar long-tailed and slender-tailed nightjars which produce fast and slow churrs respectively.
ID text from Wikipedia, CC BY-SA 4.0
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Red-necked Nightjar and Square-tailed Nightjar.