Spot-billed duck

Vlekbekeend

Spot-billed duck (Anas poecilorhyncha)

De Spot-billed duck (Anas poecilorhyncha) is een dabbling duck uit de familie van de water birds that includes ducks, geese, and swans (Anatidae).

Naamgeving

Nederlandse naam:
Vlekbekeend
Engelse naam:
Spot-billed duck
Duitse naam:
Fleckschnabelente
Franse naam:
Canard à bec tacheté
Wetenschappelijke naam:
Anas poecilorhyncha

Taxonomische indeling

Orde:
Anseriformes
Familie:
Anatidae
Onderfamilie:
Anatinae
Geslacht:
Anas

Beschrijving

Uiterlijke kenmerken:

Male:
Head and neck pale buff-grey, lightly streaked with black, crown and broad line through eyes black. Lower neck and breast buff-grey with black spotting, graduating to flanks and abdomen dark feathers with buff-grey edging, ventral region, rump, tail and tail-coverts, almost plain black-brown. Upperparts blackish with fine buff-grey borders to mantle feathers and scapulars. Wing grey-black, with white inner tertials, white tips to greater coverts, green secondaries with black base and subterminal band and white tips (speculum green between black and white bands).

Female:
As Male but smaller and duller, with smaller spots on underparts 

Juvenile:
Duller then adults, Darker brown below with less obvious spots.

 

 

Gedrag:

Often found in groups of up to fifty birds. Freely mix with other dabbling duck species. Pair bonds may be prolonged.

Maten en Gewicht

De man (woerd) van de Spot-billed duck heeft een lichaamslengte van ongeveer centimeters. De vrouw (pop) heeft een lichaamslengte van ongeveer centimeters.
Het mannetje weegt ongeveer gram. Het vrouwtje weegt ongeveer gram.
Het gewicht is notoir variabel en kan alleen als indicatie worden gebruikt!
Ondersoorten:

There are 2 subspecies

  • Indian spot-billed duck - Anas poecilorhyncha poecilorhyncha
  • Eastern spot-billed duck - Anas poecilorhyncha zonorhyncha
  • Burmese spot-billed duck - Anas poecilorhyncha haringtoni (1)

(1) The eastern spot-billed duck was formerly considered as a third subspecies. Fieldwork carried out at Hong Kong in southern China and published in 2006 found that although both the eastern spot-billed duck and the Indian spot-billed duck (subspecies A. poecilorhyncha haringtoni) bred in the region at the same time, mixed pairs were only very rarely observed. Based on this observation most taxonomists now treat the eastern spot-billed duck as a separate species.

Notitie:

Dabbling Ducks are generally hardy, easy to maintain and easy to breed. Shelter may be required by some of the smaller species in winter. They should be provided with cover (including marginal pond cover) and loafing areas as well as water. A pen which is 50% water is suggested. The water may be shallow (i.e. no more than two feet deep is required), and muddy areas for dabbling in are also appreciated. These ducks are generally good in mixed collections, although the smaller and quieter species may be bullied. Territorial disputes between ducks of the same species may be avoided by keeping only one pair of each species in an enclosure, unless the area is very large. For a single pair of ducks a pen are of 50 to 100 square metres, depending on the size of duck, should be provided.

A diet based on wheat and pellets is suggested, with maintenance pellets changed to breeders pellets for the breeding season. Greenfood is also appreciated. Grit should always be available, with soluble grit (e.g. oystershell grit) as a calcium source when breeding.

Most species are ground nesters and both close ground cover and ground level nest boxes should be provided. Hand-rearing is generally preferred, as these ducks are generally poor parents in captive conditions, particularly in enclosures shared with other waterfowl. These ducks are prone to hybridization, particularly with closely related species, which should be kept apart from one another.

Spot-billed ducks are winter-hardy, easily bred, feed grain. Hardy and prolific, these ducks are generally suitable for mixed collections, although they are sometimes reported to be quarrelsome. 

These ducks are fairly easy to breed. They nest in low or close ground cover or ground-level nest boxes. Eggs laid April to mid-May or June. Ducklings may be parent-reared.

These ducks commonly hybridise within the mallard-type ducks: maintenance in enclosures away from other similar species is suggested. Drakes may pair with Mallard (Anas platyrhynchos) and other similar species; intentional hybrids have been produced with Anas species, Wood duck (Aix sponsa), and Red-crested pochard (Netta rufina), with most of the hybrids being fertile.

 

Breeding:
Het vrouwtje Spot-billed duck legt doorgaans zo'n 7-9 buff eieren het broeden duurt 24-28 dagen.

Kunstmatig broeden:

De ideale relatieve luchtvochtigheid voor het uitbroeden van de meeste watervogeleieren is 55% voor grondbroeders en 40% bij holenbroeders. De temperatuur is meestal 37,4° C. Stel ventilatie in zoals aanbevolen door de fabrikant van de broedmachine. Eieren moeten minimaal 4 keer per dag automatisch of met de hand worden gedraaid. Naarmate de vrucht zich ontwikkelt, verliest het ei water en wordt de luchtzak groter. Bij normale ontwikkeling van een ei met een incubatietijd van 24-28 dagen neemt de luchtzak ongeveer een derde van het ei in beslag, dit bij drie dagen voor uitkomst. Reinheid is van vitaal belang en idealiter moet de luchtvochtigheid worden verhoogd tot 65% nadat de eerste tekenen van uitkomst zichtbaar worden.


Ringdagen:
Aanbevolen passende ringmaat voor de Spot-billed duck is 12 mm.
De gesloten pootring kan alleen aangebracht worden bij een jonge dabbling duck van ongeveer 12-14 dagen oud.

It doesn't matter what leg that you band, but it's good to have a consistent system.
Suggested: Left leg = Female, Right leg = Male
Onderhoudsvoeder:
Lundi Regular
Lundi Regular
Lundi Regular
Lundi Regular
Lundi Regular

Lundi Regular with a protein content of 20%, valuable Spirulina and high-quality by-products is optimally balanced in its composition maintenance food for water ornamental fowl of all kinds. Especially green teal and Whistling ducks that are not dependent on a very high protein content, are well supplied.

Lundi Regular contains all the minerals and vitamins in full form that are important for the animals. Therefore also suitable as breeding food.

Lundi Premium
Lundi Premium
Lundi Premium
Lundi Premium
Lundi Premium

Floating full food for all sea ducks, green ducks, eider ducks and geese, especially in the moulting and breeding phase ideally suited. Packed with wholesome raw materials, natural vitamins and trace elements, this performance food with a protein content of 30% forms the basis for lifelong vitality.

Foto's van de Spot-billed duck