* Human disturbance including vehicle and foot damage to nests, which are almost impossible to spot on the beach, and general interference.
* Predation, especially during nesting by mammal pests and gulls.
* Invasive plants like marram grass, lupins and wilding pines which can degrade nesting areas.
You may also want to vote for other coastal birds as your 2nd-5th choices, eg NZ dotterel, herons, godwit, etc.
Voting closes on 31 October.