A South Island conservation project caught over 1,300 predators in the last year.
The results have been quite staggering. For example, the miromiro population has risen from one to six birds per hectare since 2016.
The Hollyford Conservation Trust covers 12,000 hectares centred in Martin's Bay, Fiordland. Manager Lindsay Wilson has worked in the area for over a decade.
Aerial view of the Hollyford Valley Photo: Satoshi Yamamoto
Kōtuku/white heron at McKenzie Lagoon, Martins Bay Photo: Fiona Wardle