Whio are strong swimmers and capable divers and live in clean, fast-flowing rivers in the North and South Islands of New Zealand.

Their fleshy edged bill is perfect for collecting insects, grubs and caddis fly larvae around boulders in the rapids.

Males make a distinct whistling call (hence the Māori name 'whio') while females sound more like a rattle.

Perfectly camouflaged in their habitat - their blue/grey colour makes them look just like a rock

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Meet these charismatic ducks

Find out how we're working with DOC and Genesis Energy to ensure whio are in our future forever.