A nocturnal flightless and near-blind bird navigates the forest floor using a pair of nostrils placed uniquely at the very tip of its long sensitive bill. The North Island brown kiwi does not find prey by sight. It locates invertebrates through an acute sense of smell and by detecting minute vibrations of worms and grubs moving through soil. It has discarded the traditional avian toolkit for something far more specialised. At first glance it does not look like a natural choice for a national symbol. It is a pear-shaped flightless anomaly with hair-like feathers. Yet its structural and biological facts are among the most impressive in the natural world. Consider the egg. It is proportionally the largest of any bird relative to body size. It accounts for roughly twenty percent of the female's total body weight. To put that in perspective it is the equivalent of a human giving birth to a four-year-old child. The female carries this massive burden for thirty days. She can barely eat because there is no room left for her stomach. Once the egg is laid the female's job is largely done. She leaves the gruelling sixty-to-eighty-day incubation period to the male. When the chick hatches it does so fully feathered and almost immediately independent. There is no parental feeding. No long period of nesting care occurs. The chick walks out of the burrow and begins to work out the mechanics of survival on its own initiative. Feathers have evolved into a fine fur-like coat because flight was abandoned in the deep evolutionary past. These feathers lack the interlocking barbules that give flight feathers their structure. The result is a soft shaggy appearance perfect for moving silently through dense undergrowth. Wings are vestigial and almost entirely vanished. Legs are exceptionally powerful. A kiwi can outrun a human over rough forest terrain if it feels the need to vanish. The call is a piercing broadcast that travels through the night with force disproportionate to the bird's size. The male emits a shrill ascending whistle. The female responds with a lower rougher tone. Despite iconic status reality involves a constant battle against introduced predators. Without active management roughly ninety-four percent of kiwi chicks die before reaching breeding age. Stoats and ferrets are primarily responsible. Dogs remain the leading cause of death for adult kiwi. The classification of Not Threatened (Conservation Dependent) is a testament to the scale of human intervention. Trapping Operation Nest Egg and predator-fencing keep the species viable. The work is the only reason the bird remains a fixture of forests. The work continues. Through it the kiwi continues to probe the dark of the New Zealand night.