The Family Caprimulgidae includes nightjars and nighthawks, a group of nocturnal or crepuscular birds found worldwide, especially in tropical and subtropical regions. They are characterized by cryptic plumage that blends with their surroundings, wide gapes for catching insects in flight, and relatively small feet, as they spend little time on the ground. Caprimulgids are insectivorous, feeding mainly on moths, beetles, and other flying insects during the night. They have silent, agile flight and often nest directly on the ground, relying on camouflage for protection. These birds play an important ecological role in controlling insect populations.