Pacific Diver
- Pacific Diver
Taxobox
name = Pacific Diver
status = LC
status_system = iucn3.1
status_ref = [IUCN2006|assessors=BirdLife International|year=2004|id=49673|title=Gavia pacifica|downloaded=2006-05-09 ]
image_width = 200px
regnum =Animal ia
phylum = Chordata
classis =Aves
ordo =Gaviiformes
familia =Gaviidae
genus = "Gavia "
species = "G. pacifica"
binomial = "Gavia pacifica"
binomial_authority = (Lawrence, 1858)The Pacific Diver ("Gavia pacifica"), known in
North America as the Pacific Loon, is a medium-sized member of theloon , or diver, family. It may be conspecific withBlack-throated Diver , which it closely resembles.It breeds on deep
lakes in thetundra region ofAlaska and northernCanada as far east asBaffin Island , and inRussia east of theLena River .Unlike other loons, this
bird may migrate in flocks. It winters atsea , mainly on thePacific coast , or on largelakes over a much wider range, includingChina ,Japan ,North Korea ,South Korea ,USA andMexico . It has occurred as a vagrant toGreenland ,Hong Kong andGreat Britain .This species was spotted in
Europe on January, 2007, with an individual inGreat Britain nearFarnham, North Yorkshire .Breeding adults are like a smaller sleeker version of
Great Northern Diver . 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.This
species , like all divers, is a specialistfish -eater, catching its prey underwater. It flies with neck outstretched.The call is a yodelling high-pitched wailing.
References
Further reading
The following articles deal with separation of Pacific Diver from Black-throated Diver:
* 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, "Seabirds" ISBN 0-7470-8028-8External links
* [http://www.bird-stamps.org/cspecies/800300.htm Stamps] (for
Canada )
* [http://vireo.acnatsci.org/search.html?Form=Search&SEARCHBY=Common&KEYWORDS=pacific+loon&showwhat=images&AGE=All&SEX=All&ACT=All&Search=Search&VIEW=All&ORIENTATION=All&RESULTS=24 Pacific Loon photo gallery] VIREO-(with picture of egg clutch)
Wikimedia Foundation. 2010.
Look at other dictionaries:
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