2. (noun) whistle sound - e.g. the call of a male kiwi.
Ko te tangi a te kiwi uha, ‘Poai! Poai!’; ko tā te kiwi tāne i rite ki te korowhio. Nā reira ko te whakangē o te kiwi he korowhio (M 2004:80). / The call of the female kiwi was, 'Poāi! Poāi!', while that of the male kiwi was like a whistle. So the lure call of the kiwi was a whistle.
3. (noun) blue duck, Hymenolaimus malacorhynchos - blue-grey duck with a pale pink bill found along fast-flowing mountain streams and rivers in native forest and tussock grassland. Named after the call of the male bird.
See also whio