Four male kākāpō were transported to a new home on Pearl Island, off the south of Rakiura, as a part of the kākāpō expansion project. Ngai Tahu, Predator Free Rakiura and the Kākāpō Recovery Programme all attended the recent release.
Recently, the team undertook the task of translocating four adult male kākāpō to their new home on Pearl Island. The trip was a success after the hard work done by the Kākāpō Recovery Team researching the perfect new home.
Over the next year, more than 60 kākāpō will be trans-located between islands as part of the ongoing management of the critically endangered parrots.
New homes needed
Highly successful breeding seasons in 2016 and 2019 resulted in the kākāpō population growing by almost 70% to a total of 209 individuals today.
With so many juveniles added to the population, the current main breeding sites of Anchor Island and Whenua Hou are full to bursting, and further breeding is predicted for 2022.
However, finding new homes is challenging.
Kākāpō need large, predator-free sites with dense rimu forest to trigger breeding and sadly there aren’t many of these spaces. Add to that the fact that we’re yet to invent a fence that will keep kākāpō in, and you start to see the scale of this issue.
Over the last couple of years, the Kākāpō Recovery Team has put a lot of work into identifying potential new homes and highlighting what needs to be achieved in order to support the continued growth of the population.
Pearl Island: Great for adults, not for breeding
Pearl Island, located within the Southland District of New Zealand, is like a miniature version of Rakiura/Stewart Island.
From the island you can see the Tin Ranges where many of the founders of the current kākāpō population were originally discovered in the 80s.
Kākāpō have lived on Pearl before; they were shifted to the island in 1998 when kiore were being eradicated from Whenua Hou.
However, rats and weka are present on the island and while they’re not a threat to adult birds, both would predate eggs and young chicks. Which means that Pearl isn’t suitable for breeding despite the suitable habitat it has.
Rodent eradication has been attempted on the island before, but Pearl’s within swimming distance of Rakiura and the rodents just reinvaded. Due to this, Pearl will not hold a breeding population of kākāpō, instead it will house young males not currently needed as a part of the breeding population.
Return to Rakiura
Ngāi Tahu, Predator Free Rakiura and the Kākāpō Recovery Programme all represent the combined hope that we’ll one day see kākāpō return to their old home ranges on a predator-free Rakiura.
The young birds recently released might even be among those who get to return, clearing the old track and bowl systems on the Tin Range and their booming once again heard across the landscape, it’s heartbeat returned.
For more about the Kākāpō Recovery Programme work, check out: http://www.doc.govt.nz/our-work/kakapo-recovery