The Caprimulgus Carolinensis, also known as the chuck-will's-widow or the southern whip-poor-will, is a nocturnal bird species found in the southeastern United States. It belongs to the Caprimulgidae family and is closely related to the common nighthawk. The chuck-will's-widow gets its name from its song, which sounds like someone saying "chuck-will's-widow" repeatedly. Other synonyms for this bird include the Carolina whip-poor-will, the Nightjar Carolinensis, and the scissor-tailed nightjar. Despite its haunting cry, the chuck-will's-widow is a relatively elusive bird and can be difficult to spot during the day.