The Paradise Shelduck.
This is New Zealand's only Shelduck. They are a large goose-like duck which graze the pastures, rather than spending time in the water.
The female has a pure white head and chestnut body, the males have a black head and dark grey body. In this breed the female is more eye-catching than the male.
This group of ladies have been flying around together, so they are either the single girls or they have left the men folk and are off for some girl time.
They are very noisy when flying around and the dogs enjoy barking at them as they fly over.
We usually see them in pairs at this time of year so I'm not sure about these four. Maybe we have a man drought here??