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Southern pochard
Southern Pochard (Netta erythrophthalma) RWD1.jpg
Male southern pochard
Netta erythrophthalma Germany01.jpg
Female southern pochard
Conservation status
Scientific classification
Genus:
Netta
Species:
erythrophthalma
Netta erythrophthalma map.svg
Synonyms
  • Anas erythrophthalma Wied-Neuwied, 1833
  • Metopiana erythropthalma (Wied-Neuwied, 1833)
  • Nyroca brunnea Eyton, 1838

The southern pochard (Netta erythrophthalma) is a species of duck, and a member of the genus Netta. There are two subspecies, the South American (southern) pochard N. e. erythrophthalma (Wied-Neuwied, 1833) and the African (southern) pochard N. e. brunnea (Eyton, 1838).

The South American pochard has a fragmented range and is found from Colombia, Venezuela, Brazil, Ecuador, Peru, Bolivia and Argentina to Chile. Here it occurs in a wide variety of shallow fresh waters with submerged vegetation, from the lowlands up to 3,700 metres.

The African pochard occurs from the Cape to the Ethiopian highlands on water bodies with or without emergent vegetation. They are suspected to have been strong migrants in the past but the construction of numerous farm dams seems to allow them a more sedentary lifestyle. They reach highest concentrations in Africa's central plateaus and in the south-western winter rainfall region.

Taxonomy

Two syntype specimens of Nyroca brunnea Eyton (Monogr. Anat., 1838, p.161., pl.23.), the African Southern Pochard, are held in the vertebrate zoology collections of National Museums Liverpool at World Museum, with accession numbers NML-VZ D832 (male adult) and NML-VZ D832a (female adult). The specimens were collected in South Africa and came to the Liverpool national collection via Thomas Campbell Eyton’s collection and the 13th Earl of Derby’s collection which was bequeathed to the city of Liverpool. There are two other syntype specimens, including NHMUK 1845.7.6.271, in the Natural History Museum at Tring.

D832 D832a Description of Nyroca brunnea 3
Nyroca brunnea

Habits

Southern pochards are sociable and gregarious. They have been seen in groups of up to 5,000.

Mating and nesting

The birds are solitary nesters, building nests out of leaves and stems on the banks of a river surrounded by vegetation. The female southern pochard lays a clutch consisting of six to fifteen eggs. The female incubates the eggs for 20 to 28 days. Once the eggs hatch, the mother leads them immediately to water.

Eating habits

The southern pochard eats mainly aquatic plants, which it finds when diving. The adults also feed on larvae, pupae, aquatic animals and plant material.

Conservation status

The southern pochard population has been steadily declining since the 1970s. In 2016, the number of southern pochards was reported at around 25,000 in South America, but this could have been an overestimate due to a lack of data.

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