You step outside one day to see a bird like this on your roof. What’s that bird? He aha tērā manu?

Scroll down to see the answer.
Answer: it’s a White-Faced Heron or Matuku Moana:
Identification: Length: 67 cm; Weight: 550 g
Similar species: Reef heron, Pacific heron
A medium-sized blue-grey heron with white face, long dark grey bill, and pale yellow legs. In flight the open wings show a marked contrast between the pale grey fore-wing and dark grey main flight feathers on both the upper and lower surfaces.