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The common nighthawk resembles both the Antillean nighthawk and the lesser nighthawk and occurs at least seasonally in the entire North American range of both of these species. The lesser nighthawk is a smaller bird and displays more buffy on the undertail coverts , where the common nighthawk shows white.
Range. In October 2018, the University of Alberta published research on the common nighthawk revealing that it travels 20,000 km (12,000 mi) every ...
Least nighthawk: northern South America Chordeiles rupestris: Sand-coloured nighthawk: Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela Chordeiles minor: Common nighthawk: South America to northern North America. Chordeiles acutipennis: Lesser nighthawk: United States through South America Chordeiles gundlachii: Antillean nighthawk
The 2014 State of the Birds Report lists the nighthawk as a "common bird in steep decline." A leading hypothesis for the change in nighthawks is a decline in the insect population.
Species that live in the far north, such as the European nightjar or the common nighthawk, migrate southward with the onset of winter. Geolocators placed on European nightjars in southern England found they wintered in the south of the Democratic Republic of the Congo. [9] Other species make shorter migrations. [8]
Lesser nighthawk: Chordeiles acutipennis (Hermann, 1783) 14 Common nighthawk: Chordeiles minor (Forster, JR, 1771) 15 Antillean nighthawk: Chordeiles gundlachii Lawrence, 1857: 16 Short-tailed nighthawk: Lurocalis semitorquatus (Gmelin, JF, 1789) 17 Rufous-bellied nighthawk: Lurocalis rufiventris Taczanowski, 1884: 18 Band-tailed nighthawk
Common nighthawk, Chordeiles minor; Antillean nighthawk, ... and some are multi-colored. In size they range from 8 cm (3.1 in) to 1 m (3.3 ft) in length. Most of the ...
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