Family Caprimulgidae, commonly referred to as Nightjars or Nighthawks, is a group of nocturnal and crepuscular birds found on most continents. These birds exhibit a unique and fascinating behavior of feeding on insects while flying, making them important in controlling insect populations. Other synonyms for the family Caprimulgidae include Whip-poor-wills, Chuck-will's-widows, Poorwills, and Goatsuckers. These names originate from the birds' distinctive calls, which sound like whistles, chuckles, and mournful hoots. The diverse species within this family have unique adaptations suited for their particular environments, such as cryptic plumage allowing them to blend into their surroundings. Overall, the family Caprimulgidae comprises an intriguing group of birds that have captured the interest of ornithologists and bird-lovers worldwide.