White-billed Diver
- White-billed Diver
Taxobox
name = White-billed Diver
status = LC
status_system = iucn3.1
status_ref = [IUCN2006|assessors=BirdLife International |year=2004|id=49675|title=Gavia adamsii|downloaded=2006-05-09 ]
regnum =Animal ia
phylum =Chordata
classis =Aves
ordo =Gaviiformes
familia =Gaviidae
genus = "Gavia "
species = "G. adamsii"
binomial = "Gavia adamsii"
binomial_authority = (
range_map_width = 240px
range_map_caption = Distribution of "G. adamsii". Yellow = breeding range Red = winter rangeThe White-billed Diver, known in
North America as Yellow-billed Loon ("Gavia adamsii"), is the largest member of theloon or diver family, at 76-97 cm (30-38 in) in length, a weight of 4-6.5 kg (8.8-14.3 lbs) and a 135-160 cm (53-63 in) wingspan. [http://www.answers.com/topic/yellow-billed-loon] [http://www.enature.com/fieldguides/view_default.asp] [http://mrw.interscience.wiley.com/emrw/9780471743989/vse/article/vse4670/current/abs] [http://www.biolib.cz/en/taxon/id8334/?elang=CZ] It usually appears larger than the similarGreat Northern Diver .It breeds in the
Arctic inRussia ,Alaska andCanada and winters atsea mainly off thecoasts ofNorway and westernCanada ; it may sometimes be found on large inlandlakes inwinter . This species occasionally wanders south of its normal range into theUnited States , even as far south asArizona [http://www.azfo.org/gallery/YBLO_Tempe_Moore_20080520.html] .Breeding adults have a black head, white underparts and chequered black-and-white mantle. Non-breeding plumage is drabber with the chin and foreneck white. The main distinguishing feature from Great Northern Diver is the longer straw-yellow bill which, because the
culmen is straight, appears slightly uptilted.This
species , like all divers, is a specialistfish -eater, catching itsprey underwater.The call is an eerie wailing, lower pitched than Great Northern Diver.
The
scientific name of thisbird is after the navalsurgeon Edward Adams .The White-billed Diver is one of the
species to which the "Agreement on the Conservation of African-Eurasian Migratory Waterbirds" (AEWA ) applies.References
External links
* [http://blx1.bto.org/birdfacts/results/bob50.htm - BTO BirdFacts - White-billed Diver]
* [http://vireo.acnatsci.org/search.html?Form=Search&SEARCHBY=Scientific&KEYWORDS=adamsi&showwhat=images&AGE=All&SEX=All&ACT=All&Search=Search&VIEW=All&ORIENTATION=All&RESULTS=24 VIREO] Photographs
* [http://ibc.hbw.com/ibc/phtml/especie.phtml?idEspecie=79 IBC] Video on the Internet Bird Collection
* [http://www.flickr.com/search/groups/?w=42637302@N00&q=white-billed+diver&m=pool Flicker Field Guide Birds of the World] Photographs
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