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Pacific Loon 该鸟种在中国有分布

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Scientific name: Gavia pacifica

Chinese name: 太平洋潜鸟

Scientific classification

Pacific Diver
Pacific Diver
In Alaska

The Pacific Loon or Pacific Diver (Gavia pacifica), is a medium-sized member of the loon, or diver, family. It may be conspecific with Black-throated Diver/Arctic Loon, which it closely resembles.

Species: Gavia pacifica
Genus: Gavia
Family: Gaviidae
Order: Gaviiformes
English: Pacific Loon
中文学名: 太平洋潜鸟
中文属名: 潜鸟属
中文科名: 潜鸟科
中文目名: 潜鸟目
Birds of China: Chinese Bird
IUCN Red List: IUCN Red List
鸟类百科采用世界鸟类学家联合会(IOC)最新最权威的鸟类分类方法,Version 3.5
Contents

Description

It breeds on deep lakes in the tundra region of Alaska and northern Canada as far east as Baffin Island, and in Russia east of the Lena River.

Unlike other loons/divers, this bird may migrate in flocks. It winters at sea, mainly on the Pacific coast, or on large lakes over a much wider range, including China, Japan, North Korea, South Korea, USA and Mexico. It has occurred as a vagrant to Greenland, Hong Kong, Great Britain, Spain, and Finland.

Breeding adults are like a smaller sleeker version of Great Northern Diver/Common Loon. They measure 58–74 cm (23–29 in) in length, 110–128 cm (43–50 in) in wingspan and weigh 1–2.5 kg (2.2–5.5 lb). They have a grey head, black throat, white underparts and chequered black-and-white mantle. Non-breeding plumage is drabber with the chin and foreneck white. Its bill is grey or whitish and dagger-shaped. In all plumages, lack of a white flank patch distinguishes this species from the otherwise very similar Black-throated Diver/Arctic Loon.

This species, like all divers/loons, is a specialist fish-eater, catching its prey underwater. It flies with neck outstretched.

The call is a yodelling high-pitched wailing, as well as harsh growls and barks.

Pacific Diver
Pacific Loon

Habitat and range

The Pacific Loon breeds on tundra lakes, and winters in the open ocean or other large bodies of water. It breeds primarily in northern Canada and eastern Siberia, and winters along the Pacific coast of North America.


References

  1. BirdLife International (2012). "Gavia pacifica". IUCN Red List of Threatened Species. Version 2012.1. International Union for Conservation of Nature. http://www.iucnredlist.org/apps/redlist/details/106003867. Retrieved 16 July 2012.
  2. "Pacific Loon Spotted on Finnish Lake". YLE.fi. Yleisradio Oy. November 16, 2010. http://yle.fi/uutiset/news/2010/11/pacific_loon_spotted_on_finnish_lake_2146177.html?origin=rss. Retrieved January 29, 2011.
  3. [1] (2011).
  4. Peterson, Roger Tory (2002). A Field Guide to the Birds of Eastern and Central North America (5 ed.). New York, NY, USA: Houghton Mifflin Harcourt. p. 9. ISBN 978-0-395-74047-7. http://books.google.com/books?id=RLj8LANp3O8C&pg=PA9.

Further reading

The following articles deal with separation of Pacific Diver/Pacific Loon from Black-throated Diver/Arctic Loon:

  • Birch, A. and Lee, C-T, 1997, Field identification of Arctic and Pacific Loons, Birding 29: 106-115.
  • Birch, A and Lee, C-T, 1995, Identification of the Pacific Diver - a potential vagrant to Europe, Birding World 8: 458-466.
  • Harrison, Peter (1988). Seabirds: An Identification Guide. London: Christopher Helm. ISBN 0-7470-1410-8

External links

  • Stamps (for Canada)
  • Pacific Loon photo gallery VIREO-(with picture of egg clutch)
  • v
  • t
  • e
Loons or Divers Order: Gaviiformes, Family: Gaviidae, Genus: GaviaSpecies
  • Black-throated Loon (Arctic Loon or Black-throated Diver)
  • Great Northern Loon (Common Loon or Great Northern Diver)
  • Pacific Loon (Pacific Diver)
  • Red-throated Loon (Red-throated Diver)
  • Yellow-billed Loon (White-billed Diver)

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原文链接http://baike.niaolei.org.cn/Pacific+Loon

参考资料

[1].  Pacific Diver, from Wikipedia:  http://en.wikipedia.org/wiki/Pacific_Diver

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