Lunar influence on foraging and nesting activity of Common Poorwills
Common poorwills (Phalaenoptilus nuttallii), another insect- eating caprimulgid, have a detection threshold for insects with body lengths of approximately 5 mm (Bayne and Brigham, 1995).
Prey selection and foraging constraints in common poorwills (Phalaenoptilus nuttallii: Aves: Caprimulgidae).
Ancient Hopi Indians called the common poorwill H(tm)lchoko, which means "the sleeping one," in the belief that the birds tucked themselves away in rock crevices and hibernated like bats when the desert country turned cold.
The common poorwill, a denizen of arid western lands, is an enigma.
We examined habitat preferences (river versus pond) of great horned owls (Bubo virginianus), eastern screech-owls (Megascops asio), elf owls, lesser nighthawks, common poorwills
(Phalaenoptilus nuttallii), and common pauraques (Nyctidromus albicollis) by determining presence and absence for each species at each of the 19 sites (evaluated for each species using a two by two chi-square test).