Order Caprimulgiformes / Nightjars, Frogmouths, & Oilbirds

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order caprimulgiformes

The classification of the various birds in this order Caprimulgiformes has been controversial and complicated over the years, especially for the nightjars.

According to the ITIS database, Caprimulgiformes order has two direct families, but nightjars family (Caprimulgidae) is the largest one. The bird order Caprimulgiformes contains birds such as nightjars, frogmouths, and oilbirds. These birds are distributed all over the world except Antartica.

The two families of this order are Podargidae (Frogmouths) and Caprimulgidae (nightjars). There are about 114 Caprimulgiformes species in this bird order.

Caprimulgiformes Pronounciation

Caprimulgiformes Characteristics

All of the birds in the order share several features:

Nightjars

  • As the name suggests, nightjars and their relatives are usually active at twilight or night.
  • Caprimugiformes have large heads with large eyes.
  • The bills of these birds can open very wide-this feature is called wide gape.
  • As the birds in the order are mainly nocturnal, they have a simple coloring rather. The feathers are usually black, brown, grey, and sometimes brownish yellow or red.
  • Some species may also have patterns on their bodies.
  • Most of the birds in the order are relatively small, from 6 to 16 inches, and are also of low weight.
  • The wings and tails of Caprimulgiformes birds are long.
  • Another prominent feature of this order is the presence of a serrated claw on the middle toe. The serration often resembles teeth of a comb.
  • These birds mainly feed on insects; some catch them in the air, while other species find them in the ground.
  • The nesting habits vary from species to species. While some birds do not make any nest whatsoever, others build a nest on trees on a nest in caves.
  • Both parents feed the chicks that develop for approximately 20 days.
  • These birds are known for well-developed voices; the sounds they make can often be heard at night and are sometimes subject to legend.
  • The birds of this order can be found around the world, except some islands and Antartica.

Caprimulgiformes Aves / Species

Here are some typical representatives of this order:

nightjars

  • Oilbird, Steatornis caripensis
  • Wallace’s owlet-nightjar, Aegotheles wallacii
  • Mountain owlet-nightjar, Aegotheles albertisi
  • Tawny frogmouth, Podargus strigoides
  • Gould’s frogmouth, Batrachostomus stellatus
  • Solomon’s frogmouth, Rigidipenna inexpectata
  • Rufus potoo, Nyctibius bracteatus
  • Andean Potoo, Nyctibius maculosus
  • Common nightjar, Caprimulgus europaeus
  • Pennant-winged nightjar, Semeiophorus vexillarius

Cite this article as: "Order Caprimulgiformes / Nightjars, Frogmouths, & Oilbirds," in Bio Explorer by Jack Kirsten, May 31, 2019, https://www.bioexplorer.net/order-caprimulgiformes/.

Key References

  • [1] – “ITIS Standard Report Page: Caprimulgiformes”. Accessed May 30, 2019. Link.
  • [2] – “Nightjars: Caprimulgiformes – Physical Characteristics – Birds, Family, Wings, and Species – JRank Articles”. Accessed May 30, 2019. Link.

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