Nighttime birds, also known as nocturnal birds, are birds that are active during the night. Some of the synonyms for nighttime birds include owl, nightjar, and nighthawk. Owls are known for their large, round eyes and hooting sounds. Nightjars, on the other hand, are known for their camouflage and insect-catching abilities. The nighthawk is a bird that is also active during the day, but is most commonly seen at night. Other synonyms for nighttime birds include night heron, owl parrot, and woodcock. These birds play a vital role in many ecosystems, helping to control populations of insects and small mammals.