The tūturuatu has been absent from the New Zealand mainland for roughly 150 years. Most people will go their entire lives without seeing one. This is not because the shore plover is inconspicuous — it is one of the world's rarest shorebirds and is quite distinctively marked — but because its last meaningful foothold on the main islands disappeared before most of the conservation infrastructure that might have saved it had been conceived of, let alone built or funded. A small, stocky plover with a brown crown, bold white stripe over the eye, and bright orange-red bill and legs, the tūturuatu is immediately identifiable on the rocky coastlines it prefers. Males carry a black face mask. Females are brown where the male is black. Both perform a full-body bobbing oscillation, head and tail moving simultaneously, that gives the bird its name. On a breeding territory, tūturuatu are inquisitive and will approach intruders rather than retreating. This is an excellent strategy in an environment without ground predators and a very poor one in any other. The birds have not updated the strategy to reflect changed circumstances, and there is no particular reason to expect they will. Rangatira Island and Mangere Island in the Chatham Islands hold the main wild population. Rangatira carries the larger and more productive breeding group. Small translocated populations have been established at Waikawa Island in Hawke's Bay and Motutapu Island in the Hauraki Gulf, among others. Each establishment required sustained monitoring and predator management, and some attempts failed when predators arrived or birds dispersed to unsuitable mainland locations, where they did not survive long. On the mainland, tūturuatu do not persist. Rats, stoats, and cats find them rapidly. The birds are ground nesters with naive anti-predator responses, traits that evolved over millennia on islands without mammalian predators and that offer no protection in landscapes where those predators are present. The birds are not the problem. The mainland is the problem. About 250 adults remain across all wild and managed populations, a number approximately stable since the 1960s, constrained by the shortage of suitable predator-free habitat rather than by any acute additional decline. DOC classifies the species as Nationally Critical. Finding more appropriate release sites is the current limiting factor. The birds exist and breed effectively when given the right conditions. The islands adequate to support them securely are limited in number, and most already carry competing conservation priorities.