The area was initially taped off by Department of Conservation staff between September and April every year to protect the species after a bach owner observed several of the birds nesting on the beach 10 years ago.
Rarer than the critically endangered kokako, its numbers have now increased appreciably.
The news comes just a month after the Commissioner for the Environment's findings that four out of every five native bird is heading for extinction.
DoC Hawke's Bay biodiversity coastal marine compliance ranger Rod Hansen said the success of taping off the dotterel's habitat from people for seven months of the year "proved how bad human impact was for birds".
And that's the paradox. Not only are we the cause of the species' fall - our intervention is also the cause of its rise. Sitting back isn't an option.
In the case, and in others to come, we should applaud and encourage the small victories.