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Difference between revisions of "Common Swift" - BirdForum Opus

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;Apus apus
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[[Image:Common_Swift.jpg|thumb|550px|right|Photo &copy; by {{user|IanF|IanF}}<br />[[Cowpen Bewley Woodland Park]], Billingham, [[UK]], May 2006]]
[[Image:Common_Swift.jpg|thumb|350px|right|Photo by IanF]]
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;[[:Category:Apus|Apus]] apus
==Description==
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==Identification==
</i>
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Common Swifts are 16-17 cm long and entirely blackish-brown except for a small white or pale grey patch on their chins which is not visible from a distance. They have a short forked tail and very long swept-back wings that resemble a crescent or a boomerang.<br />
<p>
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The inner part of the wing has front and back edge paralel to each other. Swallows and Martins have wings giving a more triangular impression.
==Range : ==
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[[Image:25708kes and others 26 june 05 081.jpg|thumb|350px|right|Photo &copy; by {{user|a.dancy|a.dancy}}<br />[[Bempton Cliffs|Bempton village]], June 2005]]
By far the commonest swift of much of its range. Breeds from the Mediterranean north to northern Scotland, central Norway and the Kola Peninsula. Breeds across North-West Africa and in scattered localities in the Middle East. Has bred on Malta and recently discovered breeding in the Canary Islands. To the east range extends across Asia to northern China.
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====Similar species====
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[[Pallid Swift]] (see references)
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Common Swifts appear all dark and very sickle or boomerang-shaped and are comparatively large compared to the three hirundines below.
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[[Barn Swallow]]s are mostly pale from below and all dark above, with a dark (and reddish) throat/head and long, dark tail streamers.
  
A summer visitor throughout range , wintering in sub-Saharan Africa and India. Autumn passage is mainly late July-September, rarely until late October, even November. Return movement reaches southern Europe in late March, further north in late April-May.
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[[Common House Martin]] are very white below and dark from above, with much shorter, dark tail, and a prominent white rump
  
Vagrants recorded north to Svalbard, Iceland and the Faroes, also on Malta, Madeira and the Azores.  
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[[Sand Martin]] are pale from below with a dark throat band, but noticeably brown-coloured.
<p>
 
  
==Habitat : ==
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There is a difference in the flying style too: House martin flight is more fluttery than a Barn Swallow which is faster, more direct and swooping, while Sand Martin are more fluttery still, and Common Swift are very fast and look somewhat stiff-winged.
Feeds chiefly over open country and often over water, commonly in urban areas, in lowlands or mountains.  Breeds mainly in holes in buildings, but also crevices in cliffs and caves.
 
<p>
 
  
==Subspecies : ==
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Finally, the calls are all quite distinct: swift calls are quite loud and screeching, while swallows are more twittery and varied. House martin and Sand Martin calls are quite similar, less sustained than swallows possibly, and more chirpy and clipped, with sand martin being slightly scratchier or hoarse sounding
Nominate race breeds over much of the Western Palearctic with <i>pekinensis</i> occurring on passage through the Middle East and breeding in Asia, paler and browner plumage with more extensive white throat patch.
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==Distribution==
==Identification==
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By far the commonest swift of much of its range. Breeds from the Mediterranean north to northern [[Scotland]], central [[Norway]] and the Kola Peninsula. Breeds across North-West [[Africa]] and in scattered localities in the [[Middle East]]. Has bred on [[Malta]] and recently discovered breeding in the [[Canary Islands]]. To the east range extends across [[Asia]] to northern [[China]].
Photographed: Cowpen Bewley Wood land Park, Billingham, UK
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==Bird Song==
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A summer visitor throughout range , wintering in sub-Saharan Africa and [[India]]. Autumn passage is mainly late July-September, rarely until late October, even November. Return movement reaches southern [[Europe]] in late March, further north in late April-May.
<flashmp3>Apus apus (song).mp3</flashmp3><br />
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==Taxonomy==
''[[Media:Apus apus (song).mp3|Listen in an external program]]''
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====Subspecies====
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There are 2 subspecies<sup>[[#References|[1]]]</sup>
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*''A. a. apus'':
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:*Western [[Palearctic]] east to Lake Baikal and [[Iran]]; winters to southern [[Africa]]
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*''A. a. pekinensis'': paler and browner plumage with more extensive white throat patch
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:*[[Iran]] to [[Himalayas]], [[Mongolia]] and northern [[China]]; winters to southern Africa
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==Habitat==
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Feeds chiefly over open country and often over water, commonly in urban areas, in lowlands or mountains.  
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==Behaviour==
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Swifts spend most of their lives in the air, living on the insects they catch in their beaks. They drink and even sleep on the wing.
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====Breeding====
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Monogomous.  They build their nests mainly in holes in buildings, but also crevices in cliffs and caves. They return to the same nest every year.
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====Vocalisation====
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{{ Audio|Apus apus (song).mp3 }}
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==References==
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#{{Ref-Clements6thAug13}}#[http://www.birdforum.net/showthread.php?t=40368 Birdforum thread] discussing id of common and pallid swifts
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#[http://birdforum.net/showthread.php?p=2035870 and another Birdforum thread] with some amazing photos of both
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{{ref}}
 
==External Links==
 
==External Links==
*[http://www.birdforum.net/pp_gallery/showgallery.php?si=Apus+apus&x=4&y=11 View more images of Common Swift in the gallery]
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{{GSearch|"Apus apus" {{!}} "Common Swift"}}
[[Category:Birds]]
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{{GS-checked}}1
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<br />
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<br />
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[[Category:Birds]] [[Category:Apus]][[Category:Bird Songs]]

Revision as of 20:58, 11 February 2023

Photo © by IanF
Cowpen Bewley Woodland Park, Billingham, UK, May 2006
Apus apus

Identification

Common Swifts are 16-17 cm long and entirely blackish-brown except for a small white or pale grey patch on their chins which is not visible from a distance. They have a short forked tail and very long swept-back wings that resemble a crescent or a boomerang.
The inner part of the wing has front and back edge paralel to each other. Swallows and Martins have wings giving a more triangular impression.

Photo © by a.dancy
Bempton village, June 2005

Similar species

Pallid Swift (see references)

Common Swifts appear all dark and very sickle or boomerang-shaped and are comparatively large compared to the three hirundines below.

Barn Swallows are mostly pale from below and all dark above, with a dark (and reddish) throat/head and long, dark tail streamers.

Common House Martin are very white below and dark from above, with much shorter, dark tail, and a prominent white rump

Sand Martin are pale from below with a dark throat band, but noticeably brown-coloured.

There is a difference in the flying style too: House martin flight is more fluttery than a Barn Swallow which is faster, more direct and swooping, while Sand Martin are more fluttery still, and Common Swift are very fast and look somewhat stiff-winged.

Finally, the calls are all quite distinct: swift calls are quite loud and screeching, while swallows are more twittery and varied. House martin and Sand Martin calls are quite similar, less sustained than swallows possibly, and more chirpy and clipped, with sand martin being slightly scratchier or hoarse sounding

Distribution

By far the commonest swift of much of its range. Breeds from the Mediterranean north to northern Scotland, central Norway and the Kola Peninsula. Breeds across North-West Africa and in scattered localities in the Middle East. Has bred on Malta and recently discovered breeding in the Canary Islands. To the east range extends across Asia to northern China.

A summer visitor throughout range , wintering in sub-Saharan Africa and India. Autumn passage is mainly late July-September, rarely until late October, even November. Return movement reaches southern Europe in late March, further north in late April-May.

Taxonomy

Subspecies

There are 2 subspecies[1]

  • A. a. apus:
  • A. a. pekinensis: paler and browner plumage with more extensive white throat patch

Habitat

Feeds chiefly over open country and often over water, commonly in urban areas, in lowlands or mountains.

Behaviour

Swifts spend most of their lives in the air, living on the insects they catch in their beaks. They drink and even sleep on the wing.

Breeding

Monogomous. They build their nests mainly in holes in buildings, but also crevices in cliffs and caves. They return to the same nest every year.

Vocalisation

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2013. The eBird/Clements checklist of birds of the world: Version 6.8., with updates to August 2013. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Birdforum thread discussing id of common and pallid swifts
  3. and another Birdforum thread with some amazing photos of both

Recommended Citation

External Links

GSearch checked for 2020 platform.1

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