Definitions for "Nightjar"
A goatsucker, esp. the European species. See Illust. of Goatsucker.
(Family: Caprimulgidae) Long-winged birds, they hunt insects by swooping high in the air while flying. They hunt at dusk and dawn. They are found world-wide.
mainly crepuscular or nocturnal nonpasserine birds with mottled grayish-brown plumage and large eyes; feed on insects