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Difference between revisions of "Striated Caracara" - BirdForum Opus

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(Added References and Taxonomy ; corrected spelling & typos.)
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;[[:Category:Phalcoboenus|Phalcoboenus]] australis
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;Phalcoboenus australis
 
[[Image:Striated Caracara11a.jpg|thumb|550px|right|Photo by Vernon Lundy]]
 
[[Image:Striated Caracara11a.jpg|thumb|550px|right|Photo by Vernon Lundy]]
 
==Identification==
 
==Identification==
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At birth the down is a striking orange or light reddish colour.  In its first year it is very dark brown, almost black with brown flecking on neck. Primaries lighter brown. Legs, feet and face light grey, beak grey with tint of blue.  
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At birth the down is a striking orange or light reddish colour.  In its first year it is very dark brown, almost black with brown flecking on neck. Primaries lighter brown. Legs, feet and face light grey, beak grey with tint of blue. <br>
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Second year -flecking on neck becomes more obvious. Brown on primaries more rufous. Thin light grey line on top of beak.  
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Second year -flecking on neck becomes more obvious. Brown on primaries more rufous. Thin light grey line on top of beak. <br>
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Third year  - flecking spreads to lower neck and breast. Legs, feet and face tend towards yellowish orange, beak becomes more blue-grey.  
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Third year  - flecking spreads to lower neck and breast. Legs, feet and face tend towards yellowish orange, beak becomes more blue-grey.<br>
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Fourth year - flecking loses brown colouration, becomes light grey. Flags appear reddish-brown. Tail feathers become white-tipped.  
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Fourth year - flecking loses brown colouration, becomes light grey. Legs appear reddish-brown. Tail feathers become white-tipped. <br>
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Fifth year - flecking all light grey. Plumage all darker, losing brown highlights. White bars on the tail tip. Distinctly yellow to orange legs and feet. Face orange or salmon pink, beak clearly blue-grey.  
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Fifth year - flecking all light grey. Plumage all darker, losing brown highlights. White bars on the tail tip. Distinctly yellow to orange legs and feet. Face orange or salmon pink, beak clearly blue-grey. <br>
 
After that, the flecking becomes whiter with age.
 
After that, the flecking becomes whiter with age.
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==Distribution==
 
==Distribution==
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[[Falkland Islands]] and [[Tierra del Fuego]]. In decline in both areas and in the Falklands restricted to West Falkland and islands off the west coast, in the south of Falkland Sound and Sea Lion Island and Beauch�ne Islands south of East Falkland. In Tierra del Fuego found on the southern coast and on islands in the south of the Beagle Channel. Resident.  
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[[Falkland Islands]] and [[Tierra del Fuego]]. In decline in both areas and in the Falklands restricted to West Falkland and islands off the west coast, in the south of Falkland Sound and Sea Lion Island and Beauchene Islands south of East Falkland. In Tierra del Fuego found on the southern coast and on islands in the south of the Beagle Channel. Resident.  
 
==Taxonomy==
 
==Taxonomy==
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Monotypic.
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==Habitat==
 
==Habitat==
 
Found on shorelines and scavenges in seabird colonies.
 
Found on shorelines and scavenges in seabird colonies.
 
==Behaviour==
 
==Behaviour==
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* '''Diet:''' Primarily a scavenger, it will attack weak or disabled creatures, even ones as large as a sheep. The diet includes land land and marine invertebrates, sometimes using its strong legs and blunt, strong claws to dig for them.
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Primarily a scavenger, it will attack weak or disabled creatures, even ones as large as a sheep. The diet includes land and marine invertebrates, sometimes using its strong legs and blunt, strong claws to dig for them.
  
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* '''Breeding:''' The nest is built on the ground or on a cliff ledge, and up to 4 eggs are laid.  
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The nest is built on the ground or on a cliff ledge, and up to 4 eggs are laid.  
 
==References==
 
==References==
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#{{Ref-Clements6thDec08}}
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#{{Ref-Clements6thAug17}}#Bierregaard, R.O., Jr, Kirwan, G.M. & Garcia, E.F.J. (2018). Striated Caracara (''Phalcoboenus australis''). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (''eds.''). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53192 on 16 May 2018).
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{{Ref}}
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#BirdLife International. 2016. Phalcoboenus australis. The IUCN Red List of Threatened Species 2016: e.T22696247A93551504. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22696247A93551504.en. Downloaded on 16 May 2018.
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#{{Ref-Jaramillo03}}#Wikipedia
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#BF Member observations
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{{ref}}
 
==External Links==
 
==External Links==
 
{{GSearch|Phalcoboenus+australis}}
 
{{GSearch|Phalcoboenus+australis}}
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[[Category:Birds]] [[Category:Phalcoboenus]]
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[[Category:Birds]][[category:Phalcoboenus]]

Revision as of 07:40, 20 May 2018

Phalcoboenus australis
Photo by Vernon Lundy

Identification

At birth the down is a striking orange or light reddish colour. In its first year it is very dark brown, almost black with brown flecking on neck. Primaries lighter brown. Legs, feet and face light grey, beak grey with tint of blue.
Second year -flecking on neck becomes more obvious. Brown on primaries more rufous. Thin light grey line on top of beak.
Third year - flecking spreads to lower neck and breast. Legs, feet and face tend towards yellowish orange, beak becomes more blue-grey.
Fourth year - flecking loses brown colouration, becomes light grey. Legs appear reddish-brown. Tail feathers become white-tipped.
Fifth year - flecking all light grey. Plumage all darker, losing brown highlights. White bars on the tail tip. Distinctly yellow to orange legs and feet. Face orange or salmon pink, beak clearly blue-grey.
After that, the flecking becomes whiter with age.

Distribution

Falkland Islands and Tierra del Fuego. In decline in both areas and in the Falklands restricted to West Falkland and islands off the west coast, in the south of Falkland Sound and Sea Lion Island and Beauchene Islands south of East Falkland. In Tierra del Fuego found on the southern coast and on islands in the south of the Beagle Channel. Resident.

Taxonomy

Monotypic.

Habitat

Found on shorelines and scavenges in seabird colonies.

Behaviour

Primarily a scavenger, it will attack weak or disabled creatures, even ones as large as a sheep. The diet includes land and marine invertebrates, sometimes using its strong legs and blunt, strong claws to dig for them.

The nest is built on the ground or on a cliff ledge, and up to 4 eggs are laid.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Bierregaard, R.O., Jr, Kirwan, G.M. & Garcia, E.F.J. (2018). Striated Caracara (Phalcoboenus australis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53192 on 16 May 2018).
  3. BirdLife International. 2016. Phalcoboenus australis. The IUCN Red List of Threatened Species 2016: e.T22696247A93551504. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22696247A93551504.en. Downloaded on 16 May 2018.
  4. Jaramillo, A. 2003. Birds of Chile. Princeton & Oxford: Princeton Univ. Press. ISBN 978-0691117409
  5. Wikipedia
  6. BF Member observations

Recommended Citation

External Links

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