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Gadwall


Gadwall
Photo Information
Copyright: Peter van Zoest (PeterZ) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5137 W: 166 N: 13121] (49139)
Genre: Animals
Medium: Color
Date Taken: 2015-11-23
Categories: Birds
Camera: Nikon D90, Sigma 135-400mm f/4.5-5.6 APO, Digital RAW
Exposure: f/5.6, 1/1000 seconds
Details: Tripod: Yes
More Photo Info: [view]
Photo Version: Original Version, Workshop
Date Submitted: 2015-12-13 5:25
Viewed: 1579
Points: 18
[Note Guidelines] Photographer's Note
A common duck in the area where I live, but my first posting of this species.
In the workshop a couple.

The Gadwall (Anas strepera) is a common and widespread duck of the family Anatidae.

Systematics
The Gadwall was first described by Linnaeus in 1758 in his Systema naturae, under its current scientific name. DNA studies have shown that it is a sister species with the falcated duck, and that these two are closely related to the wigeons. There two subspecies:
• A. s. strepera, described by Linnaeus, is the nominate subspecies.
• A. s. couesi, Coues' Gadwall, extinct circa 1874, was formerly found on Teraina, a coral atoll in the Pacific Ocean.
The etymology of the word gadwall is not known, but the name has been in use since 1666.

Description
The Gadwall is 46–56 cm (18–22 in) long with a 78–90 cm (31–35 in) wingspan. The male is slightly larger than the female, weighing on average 990 g against her 850 g. The breeding male is patterned grey, with a black rear end, light chestnut wings, and a brilliant white speculum, obvious in flight or at rest. In non-breeding (eclipse) plumage, the drake looks more like the female, but retains the male wing pattern, and is usually greyer above and has less orange on the bill.
The female is light brown, with plumage much like a female mallard. It can be distinguished from that species by the dark orange-edged bill, smaller size, the white speculum, and white belly. Both sexes go through two moults annually, following a juvenile moult.

The Gadwall is a quieter duck, except during its courtship display. Females give a call similar to the quack of a female mallard but higher-pitched, transcribed as gag-ag-ag-ag. Males give a grunt, transcribed as nheck, and a whistle.

Distribution
The Gadwall breeds in the northern areas of Europe and Asia, and central North America. The range of this bird appears to be expanding into eastern North America. This dabbling duck is strongly migratory, and winters farther south than its breeding range, from coastal Alaska, south into Central America, and east into Idaho, Kansas, Ohio, Virginia, and then south all the way into Central America. Its conservation status is Least Concern.
In Great Britain, the Gadwall is a scarce-breeding bird and winter visitor, though its population has increased in recent years. It is likely that its expansion was partly through introduction, mainly to England, and partly through colonization to Great Britain, with continental birds staying to breed in Scotland. In Ireland a small breeding population has recently become established, centred on Wexford in the south and Lough Neagh in the north.

Behaviour
The Gadwall is a bird of open wetlands, such as prairie or steppe lakes, wet grassland or marshes with dense fringing vegetation, and usually feeds by dabbling for plant food with head submerged. It nests on the ground, often some distance from water. It is not as gregarious as some dabbling ducks outside the breeding season and tends to form only small flocks. This is a fairly quiet species; the male has a hoarse whistling call, and the female has a Mallard-like quack. The young birds are fed insects at first; adults also eat some molluscs and insects during the nesting season. The Gadwall is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.

Source: Wikipedia

CeltickRanger, Hotelcalifornia, shaukatmi, Hormon_Manyer has marked this note useful
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Critiques [Translate]

  • Great 
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6595 W: 89 N: 15659] (65489)
  • [2015-12-13 5:28]

Hi Peter,a perfect symmetry of the duck and its reflection,great capture,very bright and sharp,an excellent way to show us this specie and nice couple in the WS too.Have a nice Sunday and thanks,Luciano

Hallo Peter
super mooie eend is dit
leuk zo de spiegelbeeld in het water
Mooi van scherpte en prachtige kleuren
gr lou

Hello Peter

Beautiful duck with its reflection on the water, excellent focus,
sharpness, and details, beautiful eye-contact with the catch-light, TFS

Asbed

Hello Peter,

Beautiful photograph of this Common Duck. I like its cristal clear reflection on water. Nice vertical frame with good details and exposure.
Thanks for sharing with informative NOTE,
Regards,
Srikumar

Thanks for your comment on my last photograph with interesting description of your staying in KNP.

Hello Peter,

Hope you are well. What an excellent shot of this Gadwall with a perfection reflection of the bird in the water which adds to the overall beauty of the scene. The focus is very precise, the colours as lifelike as is possible and we get for ourselves a living specimen.Yes, the eye contact is amazing, the bird has caught you in this act of mischief....smile. Thanks a lot for sharing a wonderful shot, take care,
Best regards/Abid

  • Great 
  • Cobo Gold Star Critiquer/Gold Note Writer [C: 236 W: 1 N: 535] (5799)
  • [2015-12-15 9:10]

Very nice picture with a great reflection on tha water.
Congratulation.
Saludos.

Ciao Peter, great capture of lovely duck, fantastic reflections, excellent sharpness, fine details, splendid light and wonderful colors, very well done my friend, ciao Silvio

Hi, Peter. Excellent capture of the beautiful Gadwall duck with its reflection in the water, perfect focus, sharpness and details with catch light in the eye. Thanks for sharing.

Hi Peter,
Simplistic yet nice "double image" (with the mirror effect). Nicely composed and exposed, with good natural colors. Not so bombastic as your Christmas image which I just commented, but definitely worth my praise as the photo's good.
Kind regards from Ireland, László
PS: the WS photo's even more spectacular, I love it, too!

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