The Cayenne nightjar (Setopagis maculosa) is only known from a single specimen, a male taken on the Fleuve Mana, French Guiana in 1917. However, a possible female was caught at the Saül airstrip, French Guiana in 1982.
This is a small, brown variegated neotropical nightjar, 22.5 cm (8.9 in) in length. It is known only from a single specimen of a male. The upperparts are greyish-brown, and it the crown and nape are broadly streaked blackish-brown. A narrow, indistinct tawny collar can be seen on the hindneck. The wing-coverts are greyish-brown heavily spotted buff; the scapulars are blackish-brown, broadly edged buff. There are large white patched on either side of lower throat. The buff underparts are heavily barred brown.
- BirdLife International (2016). "Setopagis maculosus". IUCN Red List of Threatened Species. Version 2016.3. International Union for Conservation of Nature. Retrieved 26 November 2016.
- "BirdLife Species Factsheet: Cayenne Nightjar Caprimulgus maculosus". BirdLife International. Retrieved 3 August 2014.
- Nightjars: A Guide to Nightjars and Related Nightbirds by Nigel Cleere and Dave Nurney
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