Silver Teal

Versicolortaling

Silver Teal (Anas versicolor)

De Silver Teal (Anas versicolor) is een dabbling duck uit de familie van de water birds that includes ducks, geese, and swans (Anatidae).

Naamgeving

Nederlandse naam:
Versicolortaling
Engelse naam:
Silver Teal
Duitse naam:
Versicolorente
Franse naam:
Sarcelle bariolée
Wetenschappelijke naam:
Anas versicolor

Taxonomische indeling

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

Beschrijving

Uiterlijke kenmerken:

Southern silver teal is bigger then the Northern silver teal.

Male:
Blackish-brown cap, Down to eye And nape, and thin line down back of neck Sharply demarcated from creamy-white cheeks and throat Lower neck, breast and anterior flanks buff with small blackish-brown spots, these becoming larger on flanks: Center of belly, vent and under tail-converts finely vermiculated grey. Mantle, Scapulars and back blackish brown with buff edgings; elongated tertails dark brown with very narrow pale edges; rump. Upper tail-converts and tail finely vermiculated grey. Speculum Bright iridescent green. with narrow white border in front, and narrow black then white borders behind, while upper wing converts slaty grey-blue. primaries and their converts dark brown. Under wing with white centre and dark leading edge, and grey flight feathers. broad and heavy Bill pale blue, with yellow spot behind and below nostrils. Black nail and black stripe down centre of upper mandible to tip. Legs and Feet dark grey.

Female:
Smaller and duller overall; barring on flanks less distinct and tertails shorter, Speculum less bright green, as well as less extensive. Bill duller with little to no yellow at base.

Juvenile:
Duller with less contrast on head, as crown browner and face tinged pale brown. more streaked then spotted and barred on under parts, speculum less iridescent green.

Gedrag:

Silver teal (Anas versicolor) is well established in collections. Usually found as pairs or small groups, but sometimes larger flocks.
Sometimes found with other waterfowl species. 

Maten en Gewicht

Lengte man:
De man (woerd) van de Silver Teal heeft een lichaamslengte van ongeveer 38-43 centimeters. De vrouw (pop) heeft een lichaamslengte van ongeveer 38-43 centimeters.
Gewicht man:
Het mannetje weegt ongeveer 370-440 gram. Het vrouwtje weegt ongeveer 370-440 gram.
Het gewicht is notoir variabel en kan alleen als indicatie worden gebruikt!
Ondersoorten:

There are two subspecies:

  • Northern silver teal - S. versicolor versicolor (located in Paraguay, southern Bolivia, and southern Brazil).
  • Southern silver teal - S. versicolor fretensis (located in southern Chile, Argentina, and the Falkland Islands). 

 

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.

Silver teal (Versicolor teal) are relatively hardy, although frost-free shelter should be available in winter. They are suitable for mixed collections, although breeding may be improved in a separate enclosure. Good cover should be provided.  Feed as other dabbling ducks (grain, pellets, grass).

These ducks are bred fairly easily - sporadically rather than commonly. Eggs may be laid from early or mid-April to June, in close ground cover or in nest boxes, and may be parent-incubated, but hand-rearing is suggested, providing good food. They may lay a second or even third clutch if eggs are removed.

Hybridisation uncommon, but reported with Puna teal (Anas puna) and at least once with Baikal teal (Anas formosa).

Breeding:
Het vrouwtje Silver Teal legt doorgaans zo'n 6-10 cream-white or pale pinkish eieren het broeden duurt 25-27 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 25-27 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 Silver Teal is 8 mm.
De gesloten pootring kan alleen aangebracht worden bij een jonge dabbling duck van ongeveer 10-12 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.

Foto's van de Silver Teal