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The common nighthawk lays two 6–7 g (0.21–0.25 oz) eggs per clutch; the eggs are laid over a period of 1 to 2 days. [ citation needed ] The female alone displays a brood patch . The chicks may be heard peeping in the hours before they hatch.
The subfamily Chordeilinae contains four genera and ten species. [4] Under the genus Chordeiles exists the greatest number of diversity in species in the subfamily with the lesser nighthawk (Chordeiles acutipennis), the Antillean nighthawk (Chordeiles gundlachii), the common nighthawk (Chordeiles minor), the nacunda nighthawk (Chordeiles nacunda), the least nighthawk (Chordeiles pusillus), and ...
A study he co-authored with Ryan Shipley found that tree swallows advanced their egg laying about 3 days per decade. ... the Eastern whippoorwill and the common nighthawk, one of the longest ...
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]
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
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
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The Common Nighthawk (Chordeiles minor) is a species of nightjar that is native to the Americas. It breeds in open country across North America and migrates in flocks to wintering grounds in South America. As seen here, the Common Nighthawk does not build a nest, but instead lays eggs on bare ground. Photo: Gavin Schaefer