The brutal truth is that nesting on the ground poses a significant, if not complete, attrition rate.
It's why the new Kotahi Aviary near Cape Kidnappers is such a laudable endeavour.
After it's completed early next year, the 80m long structure will house the shore plover and blue duck (whio), allowing them to be included in the Cape Sanctuary programme.
Cape Sanctuary co-founder Andy Lowe said without intervention, the birds will cease to exist. "It's criminal that in our lifetime, we've allowed this to happen."
The sentiment is heartening to hear.
The introduction of warm-blooded mammalian predators is changing this country's DNA.
In suburbia, the cats reign supreme. Maybe it's time to look at aviaries, nesting boxes or similar urban-based sanctuaries for species we'd like our grandchildren to stand in awe of.