New Zealand brown teal

Nieuw-zeelandse bruine taling

New Zealand brown teal (Anas chlorotis)

De New Zealand brown teal (Anas chlorotis) is een dabbling duck uit de familie van de water birds that includes ducks, geese, and swans (Anatidae).

Naamgeving

Nederlandse naam:
Nieuw-zeelandse bruine taling
Engelse naam:
New Zealand brown teal
Duitse naam:
Neuseelandente
Franse naam:
Sarcelle brune de Nouvelle-Zélande
Wetenschappelijke naam:
Anas chlorotis

Taxonomische indeling

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

Beschrijving

Uiterlijke kenmerken:

Male:
In breeding plumage the male will display a chestnut colored breast, a greenish coloured head, and invariably display a distinctive, mallard-like, white stripe on each side of their flank. Some will display a white clerical neck band and some males tend to be more colourful than others, with a few occasionally resembling the spectacular colors of a Chestnut teal (Anas castanea) male. 
Both sexes have a black iris, a green tending to black speculum, with a thin white wing-bar, and both have grey slate colored legs and feet.

EclipseSimilar to female, but with whitish patch on sides of ventral region.

Female:
Similar to male but duller, plumage all dark brown with paler feather edges. No green gloss on head, narrower white eye-ring, no white neck-ring; wing similar to male.

Juvenile:
Similar to female; male may have dark spots on breast and whitish patches on sides of ventral region.

 

Gedrag:

Highly aggressive during the breeding season, fight to defend territories, but gregarious outside breeding season, gathering in flocks of a few hundred birds at communal roosts. Aggressive even to larger birds such as Paradise shelduck (Tadorna variegata) and Black swan (Cygnus atratus). Strong, persistent pair bonds, possibly life-long, may separate in flocks after breeding season but bonds renewed during autumn

Maten en Gewicht

Lengte man:
De man (woerd) van de New Zealand brown teal heeft een lichaamslengte van ongeveer 43-48 centimeters. De vrouw (pop) heeft een lichaamslengte van ongeveer 36-48 centimeters.
Gewicht man:
Het mannetje weegt ongeveer 615-730 gram. Het vrouwtje weegt ongeveer 530-700 gram.
Het gewicht is notoir variabel en kan alleen als indicatie worden gebruikt!
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. Bread and greenfood are 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.

Brown teal are very territorial and aggressive during the breeding season, attacking other birds, even species larger than themselves, although not geese or swans. 

The best breeding results have resulted if birds have been allowed to choose their own mates; pair bonds are strong once formed. Pairs should be isolated in small enclosures with abundant ground-level vegetation to provide concealed nesting sites near water, also a choice of ground-level and raised nest boxes should be provided. Fully covered aviaries, allowing fully-flighted birds, are recommended, and a pond, a muddy area for dabbling and perching platforms should also be provided. 

Eggs may be left with parents or incubated by a foster (e.g. Mallard (Anas platyrhynchos) or Pacific black duck (Anas superciliosa)) or in an artificial incubator. They may re-lay if the clutch is removed, even laying several clutches; may also re-lay if allowed to hatch and rear but ducklings removed when about three-quarters grown. 

 

Breeding:
Het vrouwtje New Zealand brown teal legt doorgaans zo'n 5-6 dark cream, cream-brown to cream-tan eieren het broeden duurt 27-30 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 27-30 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 New Zealand brown teal is 9 mm.
De gesloten pootring kan alleen aangebracht worden bij een jonge dabbling duck van ongeveer 10-11 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 New Zealand brown teal