Southern African Birds

 

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  Comb Duck

      (Knob-billed Duck)

 

Sarkidiomis melanotos

(115) 67 cm; 1,60 kg

SEXES  Similar, M > F. In flight lacks white on forewing and has more white on underparts than Spur-winged Goose.

M (BR)  Large laterally compressed knob (comb) on forehead. Orange-buff on head, neck and undertail variable.

M (NON-BR)  Comb much reduced and loses orange-buff coloration.

F  Duller than M, bill grey and lacks comb.

JUV  Dark brown upperparts, light brown underparts, head becoming mottled brown with white eye-stripe.

STATUS  Intra-African partial migrant, fairly common in north of region. Nomadic, often under­taking extensive movements.

HABITAT  Marshes and temporary pans in savannas and flood­plains.

FOOD  Grass seeds, water-lily fruits, leaves and aquatic insects.

CALL  Various harsh frog­like guk-guk calls by F and hisses by M.

BR  Polygynous. Nests in tree cavities, also on top of old Hamerkop nests.

ALT NAME  Knob-billed Duck.

 

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Dkc001

Khwai

Camera: Canon EOS 5D Mark III

Lens: Canon EF 400mm f/2.8L

 

 

Dkc002

Khwai

Camera: Canon EOS 5D Mark III

Lens: Canon EF 400mm f/2.8L

 

 

Dkc003

Khwai

Camera: Canon EOS 5D Mark III

Lens: Canon EF 400mm f/2.8L

 

 

Dkc004

Khwai River nr. Mogothlo

Camera: Canon EOS 5D Mark III

Lens: Canon EF 600mm f/4L

 

 

Dkc005

Khwai

Camera: Canon EOS 7D Mark II

Lens: Canon EF 600mm f/4L

 

 

 

 

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This web page was last updated on: 19 January, 2016