Puerto Rican Nightjar
Antrostomus noctitherus
- Vulnerable
- Card rarity: Rare
- Birds

The Puerto Rican nightjar, Puerto Rican whip-poor-will or guabairo is a bird in the nightjar family found in the coastal dry scrub forests in localized areas of southwestern Puerto Rico. It was described in 1916 from bones found in a cave in north central Puerto Rico and a single skin specimen from 1888, and was considered extinct until observed in the wild in 1961. The current population is estimated as 1,400-2,000 mature birds, which is presumed to be a stable size for this species; therefore, even though it faces pressures from habitat loss it is currently classified as Vulnerable.
Classification
- Class
- Aves
- Order
- Caprimulgiformes
- Family
- Caprimulgidae
- Genus
- Antrostomus