Spotted Whistling duck

Gevlekte fluiteend

Spotted Whistling duck (Dendrocygna guttata)

De Spotted Whistling duck (Dendrocygna guttata) is een whistling duck uit de familie van de water birds that includes ducks, geese, and swans (Anatidae).

Naamgeving

Nederlandse naam:
Gevlekte fluiteend
Engelse naam:
Spotted Whistling duck
Duitse naam:
Tüpfelpfeifgans
Franse naam:
Dendrocygne tacheté
Wetenschappelijke naam:
Dendrocygna guttata

Taxonomische indeling

Orde:
Anseriformes
Familie:
Anatidae
Onderfamilie:
Dendrocygninae
Geslacht:
Dendrocygna

Beschrijving

Uiterlijke kenmerken:

Male:
Face and foreneck grey, black around eyes continuing forwards to bill, blackish line along crown and continuing down hindneck. Breast and flanks chestnut with small white spots on the breast, larger spots outlined in black on the flanks extending to mottled tail coverts. Abdomen and ventral area white. Upperparts and tail dark brown with Rufous edges to feathers. Wings dark brown. Bill of male Reddish grey and eyes (Iris) dark brown. 

Female:
As male with no apparent plumage or soft –parts differences.

Juvenile:
Has duller coloring, lacks white spotting on the breast and the flanks appear streaked rather than spotted.

Gedrag:

Spotted whistling-ducks can be aggressive particularly to other whistling-ducks and are one of the least hardy of the whistling ducks. Gregarious. Feed and roost in groups. 

Maten en Gewicht

Lengte man:
De man (woerd) van de Spotted Whistling duck heeft een lichaamslengte van ongeveer 42-50 centimeters. De vrouw (pop) heeft een lichaamslengte van ongeveer 42-50 centimeters.
Gewicht man:
Het mannetje weegt ongeveer 725-950 gram. Het vrouwtje weegt ongeveer 725-950 gram.
Het gewicht is notoir variabel en kan alleen als indicatie worden gebruikt!
Notitie:

Whistling-ducks generally do well, either in pens or in a park with access to extensive water area and good natural cover. They are gregarious outside the breeding season, and groups may bully smaller duck species, so should be kept in large areas, in which other birds have room to escape. Most need shelter in severe weather and a well-sheltered pen with frost-free night quarters for winter is suggested, or plenty of ground cover and/or straw to stand on, as they are susceptible to frostbite. They may be kept fully-flighted in aviaries, and have also been kept full-winged in open pens, tending not to wander. Perches should be provided at an appropriate height for pinioned or wing-clipped birds. Commercial pellets and grain are suitable for feeding.

Elevated nest boxes are appreciated by most species, although pinioned birds will use ground-level boxes; boxes may be placed over water or land. Eggs may be incubated by bantams and ducklings may be bantam-reared. Many species have been successfully parent-reared in captivity. Pairs kept isolated and fully flighted in a covered pen, with high-hung nest boxes "seldom fail to rear broods". Whistling-duck species may hybridise In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigour, sometimes growing larger or taller than either parent. In taxonomy, a key question is how closely related the parent species are. are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigour, sometimes growing larger or taller than either parent. In taxonomy, a key question is how closely related the parent species are. with one another and therefore should be kept in separate enclosures, and hybridisation has also occasionally been reported with Rosy-billed pochard (Netta peposaca).

Spotted whistling-ducks are not common in collections; they can be aggressive particularly to other whistling-ducks and are one of the least hardy of the whistling ducks.

This species is rarely bred. They may nest in a ground level or raised nest box and usually lay their eggs in May to June.

 

Breeding:
Het vrouwtje Spotted Whistling duck legt doorgaans zo'n 10-12 creamy white eieren het broeden duurt 28-31 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 28-31 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 Spotted Whistling duck is 11 mm.
De gesloten pootring kan alleen aangebracht worden bij een jonge whistling 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:
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Foto's van de Spotted Whistling duck