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- Yellow-billed_Duck abstract "The Yellow-billed Duck (Anas undulata) is a 51–58 cm long dabbling duck which is an abundant resident breeder in southern and eastern Africa.This duck is not migratory, but will wander in the dry season to find suitable waters. It is highly gregarious outside the breeding season and forms large flocks.These are Mallard-sized mainly grey ducks with a darker head and bright yellow bill. The wings are whitish below, and from above show a white-bordered green speculum.Sexes are similar, and juveniles are slightly duller than adults. The north-eastern race is darker and has a brighter bill and blue speculum.It is a bird of freshwater habitats in fairly open country and feeds by dabbling for plant food mainly in the evening or at night. It nests on the ground in dense vegetation near water. The clutch numbers between six and twelve eggs.The male has a Teal-like whistle, whereas the female has a Mallard-like quack.There are two subspecies of the Yellow-billed Duck: A. undulata rueppelli (Northern Yellow-billed Duck) A. undulata undulata (Southern Yellow-billed Duck)The Yellow-billed Duck is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies. The southern nominate subspecies is declining due to competition and hybridization with feral Mallards (Rhymer 2006).".
- Yellow-billed_Duck binomialAuthority Charles_Fr%C3%A9d%C3%A9ric_Dubois.
- Yellow-billed_Duck class Bird.
- Yellow-billed_Duck conservationStatus "LC".
- Yellow-billed_Duck conservationStatusSystem "IUCN3.1".
- Yellow-billed_Duck family Anatidae.
- Yellow-billed_Duck family Anatinae.
- Yellow-billed_Duck genus Anas.
- Yellow-billed_Duck kingdom Animal.
- Yellow-billed_Duck order Anseriformes.
- Yellow-billed_Duck phylum Chordate.
- Yellow-billed_Duck thumbnail Gelbschnabelente_Anas_undulata_0505273_Wikiausschnitt.jpg?width=300.
- Yellow-billed_Duck wikiPageExternalLink 104.pdf.
- Yellow-billed_Duck wikiPageExternalLink downloadpdf.asp?id=5145.
- Yellow-billed_Duck wikiPageID "429291".
- Yellow-billed_Duck wikiPageRevisionID "588862574".
- Yellow-billed_Duck binomial "Anas undulata".
- Yellow-billed_Duck binomialAuthority "Dubois, 1839".
- Yellow-billed_Duck classis Bird.
- Yellow-billed_Duck familia Anatidae.
- Yellow-billed_Duck genus "Anas".
- Yellow-billed_Duck hasPhotoCollection Yellow-billed_Duck.
- Yellow-billed_Duck name "Yellow-billed Duck".
- Yellow-billed_Duck ordo Anseriformes.
- Yellow-billed_Duck phylum Chordate.
- Yellow-billed_Duck regnum Animal.
- Yellow-billed_Duck species "A. undulata".
- Yellow-billed_Duck status "LC".
- Yellow-billed_Duck statusSystem "IUCN3.1".
- Yellow-billed_Duck subdivision "(Northern Yellow-billed Duck) * A. u. undulata".
- Yellow-billed_Duck subdivision "(Southern Yellow-billed Duck)".
- Yellow-billed_Duck subdivision "* A. u. rueppelli".
- Yellow-billed_Duck subdivisionRanks Subspecies.
- Yellow-billed_Duck subfamilia Anatinae.
- Yellow-billed_Duck subject Category:Anas.
- Yellow-billed_Duck subject Category:Birds_of_Cameroon.
- Yellow-billed_Duck subject Category:Birds_of_South_Africa.
- Yellow-billed_Duck subject Category:Ducks.
- Yellow-billed_Duck type Animal100015388.
- Yellow-billed_Duck type AnseriformBird101845477.
- Yellow-billed_Duck type AquaticBird101844917.
- Yellow-billed_Duck type Bird101503061.
- Yellow-billed_Duck type BirdsOfSouthAfrica.
- Yellow-billed_Duck type Chordate101466257.
- Yellow-billed_Duck type Duck101846331.
- Yellow-billed_Duck type Ducks.
- Yellow-billed_Duck type LivingThing100004258.
- Yellow-billed_Duck type Object100002684.
- Yellow-billed_Duck type Organism100004475.
- Yellow-billed_Duck type PhysicalEntity100001930.
- Yellow-billed_Duck type Vertebrate101471682.
- Yellow-billed_Duck type Waterfowl101845132.
- Yellow-billed_Duck type Whole100003553.
- Yellow-billed_Duck type Animal.
- Yellow-billed_Duck type Bird.
- Yellow-billed_Duck type Eukaryote.
- Yellow-billed_Duck type Species.
- Yellow-billed_Duck type Animal.
- Yellow-billed_Duck type BiologicalLivingObject.
- Yellow-billed_Duck type Bird.
- Yellow-billed_Duck type EukaryoticCell.
- Yellow-billed_Duck type Organism.
- Yellow-billed_Duck comment "The Yellow-billed Duck (Anas undulata) is a 51–58 cm long dabbling duck which is an abundant resident breeder in southern and eastern Africa.This duck is not migratory, but will wander in the dry season to find suitable waters. It is highly gregarious outside the breeding season and forms large flocks.These are Mallard-sized mainly grey ducks with a darker head and bright yellow bill.".
- Yellow-billed_Duck label "Yellow-billed Duck".
- Yellow-billed_Duck sameAs m.027gkx.
- Yellow-billed_Duck sameAs Yellow-billed_Duck.
- Yellow-billed_Duck wasDerivedFrom Yellow-billed_Duck?oldid=588862574.
- Yellow-billed_Duck depiction Gelbschnabelente_Anas_undulata_0505273_Wikiausschnitt.jpg.
- Yellow-billed_Duck isPrimaryTopicOf Yellow-billed_Duck.
- Yellow-billed_Duck name "Yellow-billed Duck".