These fairly common but declining birds make no nest.
On warm summer evenings, Common Nighthawks roam the skies over treetops, grasslands, and cities.
This caprimulgid has a large, flattened head with large eyes; facially it lacks The common nighthawk measures 22 to 25 cm (8.7 to 9.8 in) long,The common nighthawk is sometimes called a "bull-bat", due to its perceived "bat-like" flight, and the "bull-like" boom made by its wings as it pulls from a dive.They, in addition to other nightjars, are also sometimes called "bugeaters", for their Within the family Caprimulgidae, the subfamily Chordeilinae (nighthawks) are limited to the New World and are distinguished from the subfamily Caprimulginae, by the lack of rictal bristles. The bird will sporadically defecate in flight. Once hatched, the nestlings are active and have their eyes fully or half open; additionally they display a sparing cover of soft On their 18th day, the young will make their first flight; by days 25–30, they are flying proficiently.
This widespread and familiar bird may hunt by day or night, catching flying insects in the air. Tennessee Press, Knoxville.Sibley, D. A. On warm summer evenings, Common Nighthawks roam the skies over treetops, grasslands, and cities. The name “Common Nighthawk” is a bit of a misnomer because this species is not a hawk and is most active at dawn and dusk, not at night.
Its distinctive bouncy, erratic flight is a familiar sight over urban areas and lighted ball fields on summer evenings.This flight pattern may have reminded some of a large bat, hence the local name “bullbat.”Nighthawks breed to the northern limit of forest in Canada, throughout the United States and south to Honduras.The Common Nighthawk has among the longest migrations of any North American bird, wintering entirely in South America.In flight, wings are long, pointed, and bent, with a prominent white patch near the tip.Sexes are similar in plumage, but the female has a smaller white wing patch, and lack the small white tail stripe of male.The male swoops down to within a few feet of the ground making a large sound as the wind vibrates through its flight feathers.It is present from late April through early October and is sometimes seen in large flocks during fall migration.Nicholson, C. P. 1997. An Annotated Checklist of the Birds of Tennessee. Long, slender wings are marked by a white patch on the "hand" visible in flight from great distances. Juvenile birds, in both sexes, are lighter in colour and have a smaller white wing-patch than adult common nighthawks.Like other members of the caprimulgid clan, the nighthawk's ground nesting habits endanger eggs and nestlings to predation by ground carnivores, such as There has been a general decline in the number of common nighthawks in North America, but some population increases also have occurredThe Common nighthawk's trait of being a ground-nesting bird makes it particularly susceptible to predators, some of which include domestic cats, ravens, snakes, dogs, coyotes, falcons and owls. The Common nighthawk is a migrant to Oregon with one of the longest migration distances of any North American bird. The American Ornithologists' Union treated the smaller Up until the early 19th century, the common nighthawk and the In the late 19th and early 20th centuries, because their name contained the word "The common nighthawk is distinguished from other caprimulguids by its forked tail (includes a white bar in males); its long, unbarred, pointed wings with distinctive white patches; its lack of rictal bristles, and the key identifier – their unmistakable calls.The common nighthawk may be found in forests, desert, savannahs, beach and desert scrub, cities,The common nighthawk is the only nighthawk occurring over the majority of northern North America. Univ. A. Knopf, New York, NY. They migrate by day or night in loose flocks; frequently numbering in the thousands,While migrating, these birds have been reported travelling through middle America, Florida, the West Indies,Additionally, it has been noted that during migration the birds may fly closer to the ground than normal; possibly foraging for insects.
Food availability is likely a key factor in determining which and when areas are suitable for habitation.
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