Introducing the White Eye, I always thought it just a New Zealand Bird but I also saw them in Tasmania, Australia. The explanation, is that often birds from Australia can be blown over the Tasman Sea by the equinox winds all the way to New Zealand.
Now some now call it a Wax Eye, but I grew up with White Eye as its name and Im sticking with that name.
It loves nectar and in the winter they love eating lard or sugar water. If you put that out in a NZ garden you will see many of these birds.