About Phalaenoptilus nuttallii (Audubon, 1844)
Common poorwill (Phalaenoptilus nuttallii (Audubon, 1844)) is the smallest nightjar native to North America. It measures approximately 18 centimetres (7.1 in) in length, has a wingspan of around 30 centimetres (12 in), and weighs between 36–58 grams (1.3–2.0 oz). The sexes have similar appearance: both are patterned with gray and black on their upper sides. The outer tail-feathers have white tips, and these markings are slightly more prominent in males. The common poorwill can be distinguished from similar nightjar species by its small size, short bill, rounded wings whose tips reach the end of the short tail when the bird is at rest, and its pale gray coloration. Like many other nightjars, its common name comes from its call: a monotonous poor-will that is given from dusk through to dawn. When heard at close range, a third syllable may be detected, making the call sound like poor-will-low. It also makes a chuck call note while in flight. Like other members of the nightjar family, the common poorwill feeds on nocturnal insects including moths, beetles, and grasshoppers. It ejects pellets made of indigestible body parts, in the same manner as an owl. The common poorwill often catches prey from the ground, or by leaping up into the air from the ground. It has been reported to drink while in flight.
