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Nightjars can occupy all elevations from sea level to 4,200 m (13,800 ft), and a number of species are montane specialists. Nightjars occupy a wide range of habitats, from deserts to rainforests but are most common in open country with some vegetation. [8] The nighthawks are confined to the New World, and the eared nightjars to Asia and ...
The common nighthawk or bullbat (Chordeiles minor) is a medium-sized [3] [4] crepuscular or nocturnal bird [3] [5] of the Americas within the nightjar (Caprimulgidae) family, whose presence and identity are best revealed by its vocalization.
Great eared nightjar: Lyncornis macrotis (Vigors, 1831) 9 Collared nightjar: Gactornis enarratus (Gray, GR, 1871) 10 Nacunda nighthawk: Chordeiles nacunda (Vieillot, 1817) 11 Least nighthawk: Chordeiles pusillus Gould, 1861: 12 Sand-colored nighthawk: Chordeiles rupestris (Spix, 1825) 13 Lesser nighthawk: Chordeiles acutipennis (Hermann, 1783 ...
The least nighthawk (Chordeiles pusillus), at 6.3 inches (15–19 cm) and 23 grams (0.81 oz), is the smallest of all Caprimulgiformes, while the Nacunda nighthawk (Chordeiles nacunda) is one of the largest nightjars in the world measuring at 11-13 inches (28–33 cm).
The common poorwill (Phalaenoptilus nuttallii) is a nocturnal bird of the family Caprimulgidae, the nightjars. It is found from British Columbia and southeastern Alberta, through the western United States to northern Mexico. The bird's habitat is dry, open areas with grasses or shrubs, and even stony desert slopes with very little vegetation.
Six specimens of nacunda nighthawk were found to average 159 g (5.6 oz) in body mass, with range of 130 to 188 g (4.6 to 6.6 oz). [5] Its very large size, large head, and pale body with highly contrasting black primaries make the nacunda nighthawk easy to identify. [6] This species is noteworthy for its partially diurnal habits.
Todd's nightjar is 17 to 21 cm (6.7 to 8.3 in) long. The male is generally gray above, with blackish and buff streaks and spots. It has a narrow cinnamon collar on the hindneck, a white throat, and a dark brown breast with fine bars and spots. In flight the wing shows white patches on both top and bottom.
Nightjars in the colloquial sense refers to a group of birds with dull plumage which hide during the day and often have striking calls. They are actually a number of groups which includes the true nightjars and nighthawks as well as the related eared-nightjars in the Caprimulgiformes, and the owlet-nightjars in the Aegotheliformes which recently have been verified as distinct.
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