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Difference between revisions of "Pacific Baza" - BirdForum Opus

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;Aviceda subcristata
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'''Alternative names: Crested Hawk,  Baza, Pacific Cuckoo-Falcon'''
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[[Image:Pacific_Baza.jpg|thumb|550px|right|Photo by Tom Tarrant]]
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[[Image:Pacific_Baza.jpg|thumb|550px|right|Photo by {{user|Tom+Tarrant|Tom Tarrant}}<br />Samsonvale, [[Queensland]], October 2002]]
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(Pacific Baza, Crested Hawk)
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;[[:Category:Aviceda|Aviceda]] subcristata
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Aviceda subcristata
 
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Photographed in Samsonvale, SE Queensland.
 
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==Identification==
 
==Identification==
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The Pacific Baza is a medium-sized, long-tailed hawk with a prominent crest. It is slim-bodied, with a narrow head and neck. The wings are paddle-shaped, well-rounded and deeply 'fingered'. The head, neck and breast are grey and the underparts are white with bold dark banding. The legs are short with weak toes. The eyes are golden-yellow and domed, placed well on the side of the head, giving a slightly 'pop-eyed' look. The female is heavier and browner on the crown than the male. It is also known as the Crested Hawk or Baza, or the Pacific Cuckoo-Falcon.
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[[Image:Pacific-Baza-4880W.jpg|thumb|350px|right|Male<br />Photo by '''[http://www.birdforum.net/member.php?u=49168 Hans&Judy Beste]'''<br />Gold Coast, [[Queensland]], [[Australia]], September 2013]]
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35–46 cm; long tail and prominent crest
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*Grey head, neck and breast
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*White underparts with bold dark banding
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*Short legs
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*Yellow eyes<br />
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The female is heavier and browner on the crown than the male.
 
==Distribution==
 
==Distribution==
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The Pacific Baza is found in tropical and subtropical forest and woodland in northern and eastern Australia, but rarely south of Sydney. It is also found in the Indo-Malayan peninsula, most of mainland New Guinea and nearby islands and the Solomon Islands.  Indonesia and Australasia. Breeds in the Lesser Sunda Islands, the Moluccas, New Guinea and surrounding islands, the Bismarck Archipelago and Solomon Islands. In Australia found in coastal areas of the north and east from the Kimberleys to about Newcastle in New South Wales. Resident.
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Northern and eastern [[Australia]], Indo-Malayan peninsula, [[New Guinea]] and nearby islands and the [[Solomon Islands]].   
 
==Taxonomy==
 
==Taxonomy==
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About 16 subspecies are recognised: nominate race is found in eastern and north-eastern Australia, njikena in north-western Australia. Race timorlaoensis is found from Lombok to Timor and Babar, rufa in the Obi Islands and North Moluccas, stresemanni on Buru, reinwardtii on Seram and Ambon, pallida in the Kei Islands, obscura on Biak, waigeuensis on Waigeo, stenozona in western New Guinea, the Aru Islands and Misol, megala in eastern New Guinea, Fergusson and Goodenough Islands, bismarckii in New Britain, New Ireland and New Hanover, coultasi in the Admiralty Islands and Manus, gurneyi on San Cristobal, Ugi, Santa Anna, Malaita and Guadalcanal, robusta on Choiseul and Ysabel Islands, and proxima on Bougainville and Shortland Islands.
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====Subspecies====
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[[Image:Pacific Baza 9.jpg|thumb|350px|right|Juvenile<br />Photo by {{user|Mzungu|Mzungu}}<br />Sandy Camp Rd Wetlands, [[Queensland]], [[Australia]], January 2018]]
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There are 13 subspecies<sup>[[#References|[1]]]</sup>:
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*''A. s. timorlaoensis'': [[Lesser Sundas]] and islands off [[Sulawesi]]
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*''A. s. pallida'': Seram Laut (Manawoka and Gorong) and Kai Islands
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*''A. s. reinwardtii'': South [[Moluccas]] (Boano, Seram, Ambon and Haruku)
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*''A. s. stresemanni'': Buru (central Moluccas)
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*''A. s. rufa'': Moluccas (Morotai, Halmahera, Ternate, Tidore, Bacan and Obi)
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*''A. s. waigeuensis'': Waigeo Island (off northern [[New Guinea]])
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*''A. s. obscura'': Biak Island (off northern New Guinea)
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*''A. s. stenozona'': Aru Islands and western New Guinea
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*''A. s. megala'': Eastern New Guinea
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*''A. s. coultasi'': Admiralty Islands
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*''A. s. bismarckii'': Bismarck Archipelago
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*''A. s. gurneyi'': Solomon Islands
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*''A. s. subcristata'': Northern and eastern [[Australia]]
 
==Habitat==
 
==Habitat==
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Pacific Bazas are found in tropical and subtropical woodlands and forest and sometimes grasslands, farmlands and urban areas. They prefer well-watered areas.
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Rain and swamp forests and forest edges, mangroves, grasslands, farmlands and urban areas. They prefer well-watered areas.
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==Behaviour==
 
==Behaviour==
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The Pacific Baza's favourite prey is large insects, particularly stick insects and mantids, and frogs. They sometimes eat fruit as well. Bazas will move through the canopy, or perch and watch, then make short dives, with feet extended, to snatch prey from the foliage or from the air.
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====Diet====
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[[Dictionary_M-O#O|Omnivorous]]. Their mains diet includes large insects, particularly stick insects and mantids, frogs, lizards and fruit.  
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====Breeding====
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The nest is flimsy and flat and made of sticks; it is placed high in the upper leafy branches of a tree. The clutch consists of 2-4 eggs.  Both adults brood and feed the chicks.
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====Vocalisation====
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Loud, high pitched "eee-chew."  Noisy during breeding season.
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====Movements====
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Mostly sedentary. Extreme southern SE populations in Australia are partly migratory.
  
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The Pacific Baza builds a flimsy flat nest of sticks, which is placed high in the upper leafy branches of a tree. Often the nest blows down. They are very secretive when breeding and the parent sits quietly on the nest, with its long tail sticking out over the rim. The Pacific Baza's favourite prey is large insects, particularly stick insects and mantids, and frogs. They sometimes eat fruit as well. Bazas will move through the canopy, or perch and watch, then make short dives, with feet extended, to snatch prey from the foliage or from the air.
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==References==
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#{{Ref-Clements6thAug19}}#Debus, S. & Kirwan, G.M. (2019). Pacific Baza (''Aviceda subcristata''). 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/52951 on 6 November 2019).
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#[http://www.birdsinbackyards.net/species/Aviceda-subcristata Birds in Backyards]
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#Global Raptor Information Network. 2019. Species account: Pacific Baza Aviceda subcristata. Downloaded from [http://www.globalraptors.org/grin/SpeciesResults.asp?specID=8176 http://www.globalraptors.org] on 6 Nov. 2019
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#Gregory, P. (2017) Birds of New Guinea, Including Bismarck Archipelago and Boughainville. Lynx Edicions, Barcelona.
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{{ref}}
  
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Breeding
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==External Links==
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The Pacific Baza builds a flimsy flat nest of sticks, which is placed high in the upper leafy branches of a tree. Often the nest blows down. They are very secretive when breeding and the parent sits quietly on the nest, with its long tail sticking out over the rim. It nests high in forest and woodland trees, with a clutch size of 2-4.
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{{GSearch|Aviceda+subcristata}}   
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Both parents brood and feed the chicks. Bazas have a spectacular tumbling display-flight during courtship.
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<br />
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{{Video|Pacific_Baza}}
  
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==External Links==
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[[Category:Birds]] [[Category:Aviceda]] [[Category:Videos]]
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*[http://www.birdforum.net/pp_gallery/showgallery.php?si=+Aviceda+subcristata&x=12&y=4&perpage=12&sort=1&cat=all&ppuser=&friendemail=email%40yourfriend.com&password= View more images of Pacific Baza in the gallery]
 
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*[http://www.aviceda.org/abid/birdimages.php?action=birdspecies&fid=42&bid=557 View more images of this species on the ABID]
 
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[[Category:Birds]]
 

Revision as of 17:23, 7 November 2019

Alternative names: Crested Hawk, Baza, Pacific Cuckoo-Falcon

Photo by Tom Tarrant
Samsonvale, Queensland, October 2002
Aviceda subcristata

Identification

Male
Photo by Hans&Judy Beste
Gold Coast, Queensland, Australia, September 2013

35–46 cm; long tail and prominent crest

  • Grey head, neck and breast
  • White underparts with bold dark banding
  • Short legs
  • Yellow eyes

The female is heavier and browner on the crown than the male.

Distribution

Northern and eastern Australia, Indo-Malayan peninsula, New Guinea and nearby islands and the Solomon Islands.

Taxonomy

Subspecies

Juvenile
Photo by Mzungu
Sandy Camp Rd Wetlands, Queensland, Australia, January 2018

There are 13 subspecies[1]:

  • A. s. timorlaoensis: Lesser Sundas and islands off Sulawesi
  • A. s. pallida: Seram Laut (Manawoka and Gorong) and Kai Islands
  • A. s. reinwardtii: South Moluccas (Boano, Seram, Ambon and Haruku)
  • A. s. stresemanni: Buru (central Moluccas)
  • A. s. rufa: Moluccas (Morotai, Halmahera, Ternate, Tidore, Bacan and Obi)
  • A. s. waigeuensis: Waigeo Island (off northern New Guinea)
  • A. s. obscura: Biak Island (off northern New Guinea)
  • A. s. stenozona: Aru Islands and western New Guinea
  • A. s. megala: Eastern New Guinea
  • A. s. coultasi: Admiralty Islands
  • A. s. bismarckii: Bismarck Archipelago
  • A. s. gurneyi: Solomon Islands
  • A. s. subcristata: Northern and eastern Australia

Habitat

Rain and swamp forests and forest edges, mangroves, grasslands, farmlands and urban areas. They prefer well-watered areas.

Behaviour

Diet

Omnivorous. Their mains diet includes large insects, particularly stick insects and mantids, frogs, lizards and fruit.

Breeding

The nest is flimsy and flat and made of sticks; it is placed high in the upper leafy branches of a tree. The clutch consists of 2-4 eggs. Both adults brood and feed the chicks.

Vocalisation

Loud, high pitched "eee-chew." Noisy during breeding season.

Movements

Mostly sedentary. Extreme southern SE populations in Australia are partly migratory.

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. Debus, S. & Kirwan, G.M. (2019). Pacific Baza (Aviceda subcristata). 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/52951 on 6 November 2019).
  3. Birds in Backyards
  4. Global Raptor Information Network. 2019. Species account: Pacific Baza Aviceda subcristata. Downloaded from http://www.globalraptors.org on 6 Nov. 2019
  5. Gregory, P. (2017) Birds of New Guinea, Including Bismarck Archipelago and Boughainville. Lynx Edicions, Barcelona.

Recommended Citation

External Links


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