Paradise Shelduck
Tadorna variegata
The paradise shelduck is a colourful, large-bodied species of duck that differs in features depending on the sex. Both females and males have chestnut-colour undertails, primarily black wing feathers with green secondary wing feathers, and upper wing surface feathers that are white. They have black legs and webbed feet for swimming. Paradise shelducks are the largest of the Tadorna species, measuring 63 to 71 cm (25 to 28 in) in length and between 1.09 and 2 kg (2.4 and 4.4 lb) in weight, averaging 1.72 kg (3.8 lb) in males and 1.29 kg (2. Voice: The vocal calls differ from male to female. The male belts a di-syllabic honk like a goose when in flight or when alarmed. The male gives off a deep zonk-zonk honk, while the female is characterised by a penetrating zeek-zeek.
ID text from Wikipedia, CC BY-SA 4.0

South African Shelduck
Tadorna cana
Adult South African shelducks have ruddy bodies and wings strikingly marked with black, white and green. The male has a grey head, and the female has a white face and black crown, nape and neck sides. In flight they can be hard to distinguish from Egyptian geese. Juveniles are duller in appearance. Young females lack the white on the head, excluding white eye circles. The colour on the females head is highly variable, with the extent of white increasing with age, and can become almost fully white-headed.
ID text from Wikipedia, CC BY-SA 4.0
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Paradise Shelduck and South African Shelduck.