poorwill

poor |will |ˈpɔːwɪl, ˈpʊəwɪl | ▶noun a small nightjar found mainly in central and western North America. ●Three genera in the family Caprimulgidae: four species, in particular the common poorwill (Phalaenoptilus nuttallii ), which hibernates in cold weather. ORIGIN late 19th cent.: imitative of its call.