There are ducks in New Zealand that mate for life. I don't remember their name. The female has a white head, and the male a black one and we first saw them while kayaking in Milford Sound. In Christchurch, they stroll through the Botanic Gardens in pairs, resting in the sun on the banks of the Avon River.
Christchurch has been accused of being "too English"... but that is precisely what I like about it. A European city of turn-of-the-century stone buildings with cozy sidewalk cafes and quaint English punts taking tourists along the river, situated on the shore of the South Pacific and protected on the west by the Southern Alps.