By the early twentieth century, the North Island saddleback had been reduced to a single population on Hen Island off the Northland coast. Ship rats and stoats had done the work, moving through mainland forests and across to islands until only one refuge remained. What is worth noting about tīeke is not just that it survived that reduction, but that a series of deliberate decisions beginning in the 1960s brought it back from one population to roughly fifteen separate sites. This outcome is not common. Most species reduced to a single location do not recover to fifteen. Tīeke is a medium-sized forest bird with a colour scheme that looks either deliberate or coincidental depending on your perspective. The body is glossy black. Across the back and rump sits a rich chestnut saddle, as though draped there and not retrieved. At the base of the bill, a pair of orange-red wattles hang, fleshy and conspicuous against the dark head. Males are slightly larger than females, with longer bills and more developed wattles. The overall effect is of a bird with several things going on simultaneously. On the forest floor and in the lower canopy, tīeke is a loud and active forager. The bill is used to lever bark from rotting logs and excavate grubs from decaying wood. Leaves are flicked. Crevices are probed with purpose. It also takes fruit and nectar, making it a useful seed disperser in the forests it occupies. The call is a loud, carrying series of notes that serves as territorial announcement and alert signal simultaneously. When startled, tīeke vocalise immediately and at volume. An unusual silence in an island population is not a reassuring sign. Flight is limited. Tīeke moves through the forest by hopping between branches and making short gliding transitions rather than sustained flight. This means it cannot colonise new areas independently, and it stays on any island it is placed on. That containment is both its protection and its constraint. DOC classifies the North Island saddleback as At Risk, Relict, meaning it occupies substantially less than ten percent of its original range despite the recovery to date. The recovery has required continuous management: careful translocation logistics, island biosecurity, population monitoring, and occasional rapid response when a predator breaches an island perimeter. It works, but it requires sustained attention that does not get to stop. The tīeke does not maintain itself on the mainland. For now, it persists because islands exist and someone keeps them clear.