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Difference between revisions of "Black-crowned Tchagra" - BirdForum Opus

(range description, reference updated)
(→‎External Links: Multiple GSearches combined)
 
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[[Image:Black-crowned_Tchagra.jpg|thumb|550px|right|Photo by {{user|Steve+G|Steve G}}<br />Brufut Community Woodland, Western Division, [[The Gambia]], March 2005]]
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[[Image:Black-crowned_Tchagra.jpg|thumb|550px|right|Nominate subspecies<br />Photo &copy; by {{user|Steve+G|Steve G}}<br />Brufut Community Woodland, Western Division, [[The Gambia]], March 2005]]
 
;[[:Category:Tchagra|Tchagra]] senegalus
 
;[[:Category:Tchagra|Tchagra]] senegalus
 
''Tchagra senegala''
 
''Tchagra senegala''
 
==Identification==
 
==Identification==
19-22 cm<br />
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[[Image:STH 7961.JPG|thumb|350px|right|Subspecies ''armenus''<br />Photo &copy; by {{user|volker+sthamer|volker sthamer}}<br />Buhoma, [[Uganda]], July 2018]]
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19·5–23 cm (7¾-9 in)<br />
 
They have a mean-looking hooked beak, typical of the Bushshrikes and the same furtive habits. <br />
 
They have a mean-looking hooked beak, typical of the Bushshrikes and the same furtive habits. <br />
 
'''Adult'''
 
'''Adult'''
 
*Black crown and eye stripe
 
*Black crown and eye stripe
*Broad white supercilium
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*Broad white [[Topography#Heads|supercilium]]
 
*Pale grey underparts
 
*Pale grey underparts
 
*Light brown upperparts
 
*Light brown upperparts
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*Black bill<br />
 
*Black bill<br />
 
Sexes are similar<br />
 
Sexes are similar<br />
 
  
 
'''Young birds''' have a brown cap and a pale yellow bill.  
 
'''Young birds''' have a brown cap and a pale yellow bill.  
 
+
====Variations====
 
Size, colour of the back, underparts, eyestripe vary according to the subspecies.  
 
Size, colour of the back, underparts, eyestripe vary according to the subspecies.  
 
==Distribution==
 
==Distribution==
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'''Western Africa''': [[Mauritania]], [[Senegal]], [[The Gambia]], [[Guinea-Bissau]], [[Guinea]], [[Mali]], [[Sierra Leone]], [[Liberia]], [[Ivory Coast]], [[Burkina Faso]], [[Ghana]], [[Togo]], [[Benin]] [[Nigeria]], [[Niger]] [[Chad]], [[Cameroon]], [[Central African Republic]], [[Equatorial Guinea]], [[Gabon]], [[Congo]], [[Angola]]<br />
 
'''Western Africa''': [[Mauritania]], [[Senegal]], [[The Gambia]], [[Guinea-Bissau]], [[Guinea]], [[Mali]], [[Sierra Leone]], [[Liberia]], [[Ivory Coast]], [[Burkina Faso]], [[Ghana]], [[Togo]], [[Benin]] [[Nigeria]], [[Niger]] [[Chad]], [[Cameroon]], [[Central African Republic]], [[Equatorial Guinea]], [[Gabon]], [[Congo]], [[Angola]]<br />
 
'''Eastern Africa''': [[Sudan]], [[South Sudan]], [[Eritrea]], [[Ethiopia]] [[Djibouti]], [[Somalia]], [[Kenya]], [[Uganda]] [[Rwanda]], [[Burundi]], [[Tanzania]], [[Zambia]], [[Mozambique]], [[Malawi]]<br />
 
'''Eastern Africa''': [[Sudan]], [[South Sudan]], [[Eritrea]], [[Ethiopia]] [[Djibouti]], [[Somalia]], [[Kenya]], [[Uganda]] [[Rwanda]], [[Burundi]], [[Tanzania]], [[Zambia]], [[Mozambique]], [[Malawi]]<br />
'''Southern Africa''': [[Namibia]], [[Botswana]], [[Zimbabwe]], [[South Africa]], Western Cape, Eastern Cape, [[KwaZulu-Natal]], [[Swaziland]]<br />
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'''Southern Africa''': [[Namibia]], [[Botswana]], [[Zimbabwe]], [[South Africa]], Western Cape, Eastern Cape, [[KwaZulu-Natal]], [[eSwatini]]<br />
 
'''Middle East''': [[Arabian Peninsula]], [[Saudi Arabia]] [[Yemen]], [[Oman]]
 
'''Middle East''': [[Arabian Peninsula]], [[Saudi Arabia]] [[Yemen]], [[Oman]]
 +
 
==Taxonomy==
 
==Taxonomy==
====Subspecies<sup>[[#References|[1]]]</sup>====
+
====Subspecies====
There are 10 subspecies: which vary in size and the colour of the back, underparts and eyestripe.
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There are 10 subspecies<sup>[[#References|[1]]]</sup>: which vary in size and the colour of the back, underparts and eyestripe.
 
*''T. s. cucullatus'': Coastal [[Morocco]] to [[Algeria]] and [[Tunisia]]
 
*''T. s. cucullatus'': Coastal [[Morocco]] to [[Algeria]] and [[Tunisia]]
 
*''T. s. percivali'': Southern [[Arabian Peninsula]]
 
*''T. s. percivali'': Southern [[Arabian Peninsula]]
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*''T. s. kalahari'': Southern [[Angola]], northern [[Namibia]], south-western [[Zambia]], north-western [[Zimbabwe]] to northern [[South Africa]]
 
*''T. s. kalahari'': Southern [[Angola]], northern [[Namibia]], south-western [[Zambia]], north-western [[Zimbabwe]] to northern [[South Africa]]
 
==Habitat==
 
==Habitat==
Farm tracks with bushes and thickets in wetland areas and dry country. Light savannah woodland.
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They are to be found in a wide variety of grassland with bushes. Bushy farm tracks, thickets in wetland areas and dry country. Light savannah woodland.
 
==Behaviour==
 
==Behaviour==
 
====Diet====
 
====Diet====
The diet includes insects.
+
Their diet consists mostly of insects, such as grasshoppers, crickets, beetles and their larvae.
 
====Breeding====
 
====Breeding====
It builds a cup shaped nest in a tree or bush. The clutch consists of 2-3 heavily marked white eggs. Incubation (mostly by the female) takes 12-15 days; the chicks fledging after a further 15 days.
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They build a cup shaped nest in a tree or bush. The clutch contains 2-3 heavily marked white eggs. Incubation (mostly by the female) takes 12-15 days; the chicks fledging after a further 15 days.
 
====Vocalisation====
 
====Vocalisation====
 
'''Song''': descending whistling, ''Chee-chee chee cheroo cheroo''.  
 
'''Song''': descending whistling, ''Chee-chee chee cheroo cheroo''.  
 
==References==
 
==References==
#{{Ref-Clements6thAug17}}#Avibase
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#{{Ref-Clements6thAug18}}#Avibase
#Wikipedia
 
 
#BF Member observations
 
#BF Member observations
 +
#Handbook of the Birds of the World Alive (retrieved December 2018)
 
{{ref}}
 
{{ref}}
 
==External Links==
 
==External Links==
{{GSearch|Tchagra+senegal}}  
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{{GSearch|"Tchagra senegalus" {{!}} "Tchagra senegala" {{!}} Brown-crowned Tchagra}}
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{{GS-checked}}1
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<br />
 +
<br />
 +
 
 
[[Category:Birds]][[Category:Tchagra]]
 
[[Category:Birds]][[Category:Tchagra]]

Latest revision as of 21:57, 17 September 2023

Nominate subspecies
Photo © by Steve G
Brufut Community Woodland, Western Division, The Gambia, March 2005
Tchagra senegalus

Tchagra senegala

Identification

Subspecies armenus
Photo © by volker sthamer
Buhoma, Uganda, July 2018

19·5–23 cm (7¾-9 in)
They have a mean-looking hooked beak, typical of the Bushshrikes and the same furtive habits.
Adult

  • Black crown and eye stripe
  • Broad white supercilium
  • Pale grey underparts
  • Light brown upperparts
  • Chestnut wings
  • Black tail, tipped white
  • Black bill

Sexes are similar

Young birds have a brown cap and a pale yellow bill.

Variations

Size, colour of the back, underparts, eyestripe vary according to the subspecies.

Distribution

Africa and the Middle East
Northern Africa: Morocco, Algeria Tunisia, Libya
Western Africa: Mauritania, Senegal, The Gambia, Guinea-Bissau, Guinea, Mali, Sierra Leone, Liberia, Ivory Coast, Burkina Faso, Ghana, Togo, Benin Nigeria, Niger Chad, Cameroon, Central African Republic, Equatorial Guinea, Gabon, Congo, Angola
Eastern Africa: Sudan, South Sudan, Eritrea, Ethiopia Djibouti, Somalia, Kenya, Uganda Rwanda, Burundi, Tanzania, Zambia, Mozambique, Malawi
Southern Africa: Namibia, Botswana, Zimbabwe, South Africa, Western Cape, Eastern Cape, KwaZulu-Natal, eSwatini
Middle East: Arabian Peninsula, Saudi Arabia Yemen, Oman

Taxonomy

Subspecies

There are 10 subspecies[1]: which vary in size and the colour of the back, underparts and eyestripe.

Habitat

They are to be found in a wide variety of grassland with bushes. Bushy farm tracks, thickets in wetland areas and dry country. Light savannah woodland.

Behaviour

Diet

Their diet consists mostly of insects, such as grasshoppers, crickets, beetles and their larvae.

Breeding

They build a cup shaped nest in a tree or bush. The clutch contains 2-3 heavily marked white eggs. Incubation (mostly by the female) takes 12-15 days; the chicks fledging after a further 15 days.

Vocalisation

Song: descending whistling, Chee-chee chee cheroo cheroo.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase
  3. BF Member observations
  4. Handbook of the Birds of the World Alive (retrieved December 2018)

Recommended Citation

External Links

GSearch checked for 2020 platform.1

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