Ardea sumatrana Raffles, 1822

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EOL Text

Bill is more slender, slightly recurved bill and darker belly, elongated plumes on back more in evidence, nuchal crest longer. Juvenile more rufous, with heavier white streaks on neck and underparts.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/node/507

Habitat and Ecology:

Systems

  • Terrestrial
  • Freshwater
  • Marine
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/Author© International Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/106003724

Bill is more slender, slightly recurved bill and darker belly, elongated plumes on back more in evidence, nuchal crest longer. Juvenile more rufous, with heavier white streaks on neck and underparts.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/node/507

IUCN Red List Assessment:
Red List Category

LC
Least Concern

Red List Criteria

Version

3.1

Year Assessed

2009

Assessor/s

BirdLife International

Reviewer/s

Bird, J., Butchart, S.

Contributor/s

Justification

This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size may be moderately small to large, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

History

  • 2008
    Least Concern
  • 2004
    Least Concern
  • 1988
    Near Threatened
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/Author© International Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/106003724

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/node/507

Great-billed heron:

The great-billed heron (Ardea sumatrana) is a wading bird of the heron family, Ardeidae, resident from southeast Asia to Papua New Guinea and Australia. Its habitats are largely coastal such as islands, coral reefs, mangroves, large rivers. However, occasionally, it can be found inland in shallow ponds.

It feeds in shallow water, spearing fish with its long, sharp bill. It will wait motionless for prey, or slowly stalk its victim.

The great-billed heron is a large bird, typically standing 114–115 cm (45–45 in) tall and weighing up to 2.6 kg (5.7 lb).[2] It is larger than the purple heron, which it resembles in appearance, although it is larger and darker. The plumage is largely dark grey above. In flight, it has a uniform dark grey upperwing.

The flight is slow, with its neck retracted. This is characteristic of herons and bitterns, and distinguishes them from storks, cranes and spoonbills, which extend their necks.

Widespread throughout its large range, the great-billed heron is evaluated as Least Concern on the IUCN Red List of Threatened Species.

References[edit]

  1. ^ BirdLife International (2012). "Ardea sumatrana". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Herons, Egrets and Bitterns: Their Biology and Conservation in Australia - Neil McKilligan - Google Books. Books.google.com. Retrieved 2012-06-29. 
Licensehttp://creativecommons.org/licenses/by-sa/3.0/
Rights holder/AuthorWikipedia
Sourcehttp://en.wikipedia.org/w/index.php?title=Great-billed_heron&oldid=634070264

Not Threatened.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/node/507

Bill is more slender, slightly recurved bill and darker belly, elongated plumes on back more in evidence, nuchal crest longer. Juvenile more rufous, with heavier white streaks on neck and underparts.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/content/ardea-sumatrana

Subspecies and Distribution:

    *sumatrana Raffles, 1822 - Burma, Thailand and S Viet Nam to Indonesia, Philippines and New Guinea. *mathewsae Mathews, 1912 - N Australia.
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/node/507

100-115 cm, 1300-2600 g

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/node/507
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith