Common Scoter
Melanitta nigra
The common scoter is characterised by its bulky shape and large bill. The male is all black with a bulbous bill which shows some yellow coloration around the nostrils. The female is a brown bird with pale cheeks, very similar to female black scoter. This species can be distinguished from other scoters, apart from black scoter, by the lack of white anywhere on the drake and the more extensive pale areas on the female. The black scoter and common scoter have diagnosably distinct vocalisations.
ID text from Wikipedia, CC BY-SA 4.0
Maned Duck
Chenonetta jubata
This 45–51 cm (18–20 in) duck looks like a small goose, and mostly feeds by grazing in flocks. The male is grey with a dark brown head, mottled breast and very thin white and black stripes on sides/flanks. The female has white stripes above and below the eye and mottled underparts. Both sexes have grey wings with black primaries and a white speculum. Juveniles are similar to adult females, but lighter and with a more streaky breast. The Australian wood duck can be distinguished from pygmy geese, Nettapus spp., which are smaller, have bold white face markings and are usually seen on water. Voice: The most common call is a loud, rising croaky gnow sound by the females, and the male call is the same except smoother, shorter and higher than the females. Staccato chattering is also present in flocks.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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