Major Achievements
With the loyal support of our Partners and Sponsors, a team of dedicated supprters and with the help of thousands of volunteers we have been able to build a sanctuary that wil help protect and preserve for many generations to come ...
2017
Giant Kokopu released in the Mangatawhiri and Waikokowai Streams.
2017
200,000 plants planted – all grown at TOSSI nursery.
2016
Duvaucel's gecko reintroduced.
2014
Ten critically endangered Takahē have been released.
2012
Saddleback reintroduced.
2010
Kakariki released.
2009
Oi (grey-faced petrel) confirmed breeding.
2009
20,000 plants planted – all grown at TOSSI nursery.
2008-09
Pateke released supported by Wetland Care NZ and Banrock Station Wines.
2008
First kiwi chicks hatch.
2008
Kaka confirmed breeding within Tawharanui
2007
North Island robin and whitehead released.
2007
Mangatawhiri Wetlands reinstated and planting commenced.
2007
TOSSI Nursery opened.
2006-07
Forty-four North Island brown kiwi released through the Bank of NZ Operation Nest Egg Program.
2005
Bellbirds colonise Tawharanui from Little Barrier (Hauturu).
2005
Forest and Green Geckos rescued from Northern Motorway and released at Tawharanui.
2005
Two helicopter bait drops target and effectively remove mammalian predators from the Sanctuary.
2004
"Big Plant" - first major planting organised by ARC and TOSSI.
2004
2.5 km Predator-proof fence completed at a cost of $625,000.
2002
TOSSI established.
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