Knob-billed duck images

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The Knob-billed duck (Sarkidiornis melanotos) belongs to the family Anatidae under the order Anseriformes.

Knob-billed duck taxonomy

The Anatidae is the family of geese and swans. The family Anatidae was first introduced by William Elford Leach, MD, FRS (2 February 1791 – 25 August 1836), an English zoologist and marine biologist, in the year 1820.

The family Anatidae comprises seven subfamilies, including Tadorninae. The subfamily Tadorninae contains about 13 genera, including genus Sarkidiornis.

The genus Sarkidiornis was first described by Thomas Campbell Eyton JP, DL (10 September 1809 – 25 October 1880), an English naturalist, in the year 1838.

The genus Sarkidiornis comprises two species, viz., Sarkidiornis sylvicola and Sarkidiornis melanotos. The Sarkidiornis melanotos is a monotypic species.

The species Sarkidiornis melanotos was first described by Thomas Pennant (14 June OS 1726 – 16 December 1798), a Welsh naturalist, traveller, writer and antiquarian, in the year 1769.

Taxonomic classification
Binomial name:	Sarkidiornis melanotos
Species:	S. melanotos
Genus:	Sarkidiornis
Subfamily:	-
Family:	Anatidae
Order:	Anseriformes
Class:	Aves
Phylum:	Chordata
Kingdom:	Animalia

1.Knob-billed duck - Sarkidiornis melanotos
Image by Koshy Koshy

2.Knob-billed duck - Sarkidiornis melanotos
Image by CRaghavan

3.Knob-billed duck - Sarkidiornis melanotos
Image by Bernard DUPONT

4.Knob-billed duck - Sarkidiornis melanotos
Image by Bernard DUPONT

5.Knob-billed duck - Sarkidiornis melanotos
Image by Bernard DUPONT

6.Knob-billed duck - Sarkidiornis melanotos
Image by Manojiritty

7.Sarkidiornis melanotos
Image by Charles J Sharp

8.Sarkidiornis melanotos
Image by Gaurav Naik

9.Knob-billed duck juvenile - Sarkidiornis melanotos
Image by Dr. Raju Kasambe

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1.Image source: https://www.flickr.com/photos/97235261@N00/9313136628 (cropped)
Author: Koshy Koshy | License: CC BY 2.0 as on 8/8/18
2.Image source: https://commons.wikimedia.org/wiki/File:Indian_Knob_billed_duck.jpg (cropped)
Author: CRaghavan | License: CC BY-SA 4.0 as on 8/8/18
3.Image source: https://www.flickr.com/photos/berniedup/6005564035/ (cropped)
Author: Bernard DUPONT | License: CC BY-SA 2.0 as on 8/8/18
4.Image source: https://www.flickr.com/photos/berniedup/14053173593/in/photostream/ (cropped)
Author: Bernard DUPONT | License: CC BY-SA 2.0 as on 8/8/18
5.Source: https://www.flickr.com/photos/berniedup/31070199352/ (cropped)
Author: Bernard DUPONT | License: CC BY-SA 2.0 as on 8/8/18
6.Source: https://commons.wikimedia.org/ (cropped)
Author: Manojiritty | License: CC BY-SA 4.0 as on 8/8/18
7.Source: https://commons.wikimedia.org/ (cropped)
Author: Charles J Sharp | License: CC BY-SA 4.0 as on 8/8/18
8.Source: https://commons.wikimedia.org/ (cropped)
Author: Gaurav Naik | License: CC BY-SA 3.0 as on 8/8/18
9.Source: https://commons.wikimedia.org/ (cropped)
Author: Dr. Raju Kasambe | License: CC BY-SA 4.0 as on 8/8/18
Current topic in Bird World: Knob-billed duck - Sarkidiornis melanotos images.

Knob-billed duck

Home   ›   Great-billed heron   ›   Knob-billed duck - Sarkidiornis melanotos.

The knob-billed duck (Sarkidiornis melanotos), also known as comb duck belongs to the family Anatidae.

The knob-billed duck is distributed in sub-Saharan Africa, Madagascar, Pakistan, India, Indochina and southern China. In South America it is distributed in Paraguay, Brazil and Argentina.

There are two subspecies, namely, Sarkidiornis melanotos melanotos and Sarkidiornis melanotos sylvicola. The IUCN (International Union for Conservation of Nature) has categorized and evaluated these duck species and has listed them as of "Least Concern".

These knob-billed ducks are large birds, males measuring 65 to 80 cm in length and weighing 1,300 to 2,900 grams. The female birds weigh 1,200 to 2,300 grams. In adults the white head is freckled with dark spots.

The neck and the underparts are white. The upper parts are glossy blue black. The secondaries have bluish and greenish iridescence. The males are larger than the females and have a large black knob on the bill.

These duck species feed on plant matter, seeds, grasses, shoots, small fish and invertebrates. They inhabit marshes, swamps, rivers, lakes, rice fields and inundated floodplains. These ducks breed during the rainy season.

Indian birds - Knob-billed duck - Sarkidiornis melanotos

Biological classification of Sarkidiornis melanotos
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Anseriformes
Family:	Anatidae
Subfamily:	-
Genus:	Sarkidiornis
Species:	S. melanotos
Binomial name:	Sarkidiornis melanotos
Distribution:	Africa, Asia, South America;
Feeding habits:	seeds, grasses, and aquatic plants;
IUCN status listing:	Least Concern

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Image source: http://commons.wikimedia.org/wiki/File:Sarkidiornis_melanotos_-swimming-8a.jpg
Author: Nori Almeida | License: CC BY 2.0
Current topic in Birds of India: Knob-billed duck - Sarkidiornis melanotos.