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Difference between revisions of "Crested Goshawk" - BirdForum Opus

(Picture of juvenile. References updated)
(Pictures Galleried. References updated)
Line 33: Line 33:
 
*''A. t. castroi'': Polillo (off Luzon in northern Philippines)
 
*''A. t. castroi'': Polillo (off Luzon in northern Philippines)
 
==Habitat==
 
==Habitat==
[[Image:20191164624 6376a05803 b.jpg|thumb|350px|right|Juvenile in flight ssp ''indicus'' <br />Photo by {{user|SeeToh|SeeToh}}<br />Bishan Park, [[Singapore]], August 2015]]
 
 
Lowland and hill forest up to about 2,000 m.  
 
Lowland and hill forest up to about 2,000 m.  
 
==Behaviour==
 
==Behaviour==
 
====Flight Action====
 
====Flight Action====
 +
[[Image:37781123364_dcf4cdd14e c.jpg|thumb|350px|right|Juvenile in flight ssp ''indicus'' <br />Photo by {{user|SeeToh|SeeToh}}<br />Henderson Waves, [[Singapore]], November 2017]]
 
Typical goshawk action of flap, flap, glide. A woodland specialist which relies on surprise to ambush its prey.
 
Typical goshawk action of flap, flap, glide. A woodland specialist which relies on surprise to ambush its prey.
 
====Diet====
 
====Diet====
 
Their diet consists of large insects, small mammals, reptiles; such as lizards and frogs, and birds.
 
Their diet consists of large insects, small mammals, reptiles; such as lizards and frogs, and birds.
 
====Vocalisation====
 
====Vocalisation====
[[Image:37781123364_dcf4cdd14e c.jpg|thumb|350px|right|Juvenile in flight ssp ''indicus'' <br />Photo by {{user|SeeToh|SeeToh}}<br />Henderson Waves, [[Singapore]], November 2017]]
 
 
Mostly quiet. Screams when defending nest.<br />
 
Mostly quiet. Screams when defending nest.<br />
 
'''Call''' is a screamed ''he, he, hehehehe''
 
'''Call''' is a screamed ''he, he, hehehehe''
 +
==Gallery==
 +
Click on photo for larger image
 +
<gallery>
 +
Image:20191164624 6376a05803 b.jpg|Juvenile in flight ssp ''indicus'' <br />Photo by {{user|SeeToh|SeeToh}}<br />Bishan Park, [[Singapore]], August 2015
 +
Image:Crested Goshawk 01 02 2017.JPG|Sub-adult<br />Photo by {{user|kctsang|kctsang}}<br />[[Singapore]], 1 February 2017 <!--EDITORS: this image originally uploaded as female, re-identified as sub-adult unknown sex-->
 +
</gallery>
 
==References==
 
==References==
#{{Ref-Clements6thAug17}}#Handbook of the Birds of the World Alive (retrieved March 2016)
+
#{{Ref-Clements6thAug19}}#Clark, W.S. and J. S. Marks (2020). Crested Goshawk (Accipiter trivirgatus), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.cregos1.01
#Wikipedia
 
{{ref}}
 
 
==External Links==
 
==External Links==
 
{{GSearch|Accipiter+trivirgatus}}  
 
{{GSearch|Accipiter+trivirgatus}}  

Revision as of 22:44, 25 September 2020

Photo by Peter Ericsson
Khao Yai, Thailand, March 2006
Accipiter trivirgatus

Identification

Female ssp indicus
Photo by SeeToh
Bishan Park, Singapore, August 2015

30–46 cm (11¾-18 in); female larger than male
Short broad wings and long tail
Male

  • Dark brown crown
  • Yellow eyes
  • Grey head sides
  • Dark moustachial and mesial stripes
  • Pale underparts has reddish breast streaks and bars on the belly

Female: head sides are browner, and underparts streaks and bars are brown
Juvenile: head feathers have pale fringes. Buff underparts. Grey eyes and lacks the dark mesial stripe

Similar Species

Besra: which is smaller and lacks the crest.

Distribution

Southern Asia: breeds in western India and Sri Lanka and from north-east India and the Himalayas east to south-central and southern China and Taiwan, south to the Malay Peninsula. Also occurs on Sumatra, Java, Borneo and the southern Philippine islands of Palawan, Negros, Leyte, Samar and Mindanao as well as numerous smaller islands. Resident.

Taxonomy

Juvenile, subspecies indicus
Photo by jweeyh
Singapore, February 2018

Subspecies

There are 11 subspecies[1]:

  • A. t. indicus: India and Nepal to southern China, Indochina and Malay Peninsula
  • A. t. peninsulae: South-western India
  • A. t. layardi: Sri Lanka
  • A. t. formosae: Taiwan
  • A. t. trivirgatus: Sumatra
  • A. t. niasensis: Nias Island (off western Sumatra)
  • A. t. javanicus: Java (vagrant to Bali)
  • A. t. microstictus: Borneo
  • A. t. palawanus: South-western Philippines (Palawan and Calamianes)
  • A. t. extimus: South-eastern Philippine Islands
  • A. t. castroi: Polillo (off Luzon in northern Philippines)

Habitat

Lowland and hill forest up to about 2,000 m.

Behaviour

Flight Action

Juvenile in flight ssp indicus
Photo by SeeToh
Henderson Waves, Singapore, November 2017

Typical goshawk action of flap, flap, glide. A woodland specialist which relies on surprise to ambush its prey.

Diet

Their diet consists of large insects, small mammals, reptiles; such as lizards and frogs, and birds.

Vocalisation

Mostly quiet. Screams when defending nest.
Call is a screamed he, he, hehehehe

Gallery

Click on photo for larger image

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Clark, W.S. and J. S. Marks (2020). Crested Goshawk (Accipiter trivirgatus), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.cregos1.01

External Links


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