| 词条 | Hook Bill |
| 释义 |
| name = Hook Bill | image = PEO054 1,0 Krummschnabelenten.jpg | image_caption = White-Bibbed Hook Bill | taxon = Anatinae | authority = Reichenbach, 1849 | subdivision_ranks = Genera | subdivision = }} The Hook Bill duck ({{lang-it|Anatra Curvirostra}}[1] or Anatra Becco Curvo[1], {{lang-nl|Kromsnaveleend}}[2] or Noord-Hollandse Krombekeend[3]) is a breed of domestic duck originating in Asia (probably India,[4] as a likely relative of the Indian Runner duck[5]) but spread in the Netherlands.[6] The name refers to the bird's distinctive Roman nosed beak. The Hook Bill is an old breed that can be traced back to the 17th century. In the Netherlands, it was traditionally raised alongside canals. Its worldwide population in captivity is estimated to be no more than 400 individuals.[3][6] It's considered an endangered duck breed.[7] Today, it is primarily raised for exhibition purposes, and is a seasonal egg layer of blue eggs. It's a light-weight bird, weighing between 5.5 and 6.5 pounds (2.3 to 2.8 kilos). The Hook Bill appears in several varieties: the Dusky (or Dark) is in shades of gray-brown. The White-Bibbed version is similar to the Dusky, but has a large patch of white on the front and primary feathers. The last is an entirely white variety.[8] Exported to North America in 2000, it has not yet been admitted to the American Poultry Association's Standard of Perfection. See also
References1. ^1 {{cite web |url=http://www.avicoliornamentali.it/anatre/anatra-becco-curvo |title=Anatra Becco Curvo |work=Avicoli Ornamentali |lang=it |accessdate=2018-08-03}} {{duck-stub}}2. ^{{cite web |title=Kromsnaveleend |work=Feather Site |url=http://www.feathersite.com/Poultry/Ducks/Hooks/BRKKroms.html |accessdate=2014-07-21}} 3. ^1 {{cite web |url=http://www.levendehave.nl/kennisbank/pluimvee/krombekeend|title=Krombekeend |work=Levende Have |accessdate=2018-08-03}} 4. ^{{cite web |title=Ducks |url=http://www.poultryclub.org/breed-gallery/ducks/ |publisher=The Poultry Club of Great Britain |accessdate=2018-08-03}} 5. ^{{cite web |url=https://www.roysfarm.com/hook-bill-duck/ |title=Hook Bill Duck Breed Information |work=Roy's Farm |accessdate=2018-08-03}} 6. ^1 {{cite web |url=https://poultrykeeper.com/duck-breeds/hook-bill-ducks |title=Hook Bill Ducks |work=Poultry Keeper |accessdate=2018-08-03}} 7. ^{{cite web |url=http://www.fao.org/docrep/pdf/010/a1250e/annexes/List%20of%20breeds%20documented%20in%20the%20Global%20Databank%20for%20Animal%20Genetic%20Resources/List_breeds.pdf |format=PDF |title=Breeds Currently Recorded in the Global Databank for Animal Genetic Resources |page=141 |author=Food and Agriculture Organization |publisher=United Nations |work=Domestic Animal Diversity Information System (DAD-IS) |accessdate=2018-08-03}} 8. ^{{cite book |last=Ekarius |first=Carol |title=Storey's Illustrated Guide to Poultry Breeds |year=2007 |publisher=Storey Publishing |isbn=978-1-58017-667-5 }} 1 : Duck breeds originating in the Netherlands |
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