New Zealand's Prime Minister Jacinda Ardern listens to a brief prayer after a media standup in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva

New Zealand's Prime Minister Jacinda Ardern addresses the media in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva

New Zealand's Prime Minister Jacinda Ardern reacts during a media standup in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva

New Zealand's Prime Minister Jacinda Ardern listens to questions during a media standup in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva

New Zealand's Prime Minister Jacinda Ardern reacts while addressing the media in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva

New Zealand's Prime Minister Jacinda Ardern reacts while addressing the media in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva

New Zealand's Prime Minister Jacinda Ardern looks on at a media standup in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva TPX IMAGES OF THE DAY

New Zealand's Prime Minister Jacinda Ardern looks on at a media standup in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva

New Zealand's Prime Minister Jacinda Ardern looks on as she addresses the media in the aftermath of the eruption of White Island volcano, also known by its Maori name Whakaari, at Whakatane, New Zealand December 13, 2019. REUTERS/Jorge Silva

Maori community leader Pouroto Ngaropo poses for a photo during an interview with Reuters in Whakatane, New Zealand December 10, 2019. Picture taken December 10, 2019. REUTERS/Charlotte Greenfield

Maori community leader Pouroto Ngaropo poses for a photo during an interview with Reuters in Whakatane, New Zealand December 10, 2019. Picture taken December 10, 2019. REUTERS/Charlotte Greenfield

A Maori warrior prepares to challenge Prince Charles during his welcome to Takanhanga Marae in Kaikoura, New Zealand November 23, 2019. REUTERS/Tracey Nearmy

Britain's Prince Charles and his wife Camilla sit with Maori elders during a welcome to Tuahiwi Marae in Christchurch on November 22, 2019. Marty Melville/Pool via REUTERS

Britain's Prince Charles and his wife Camilla stand with Maori elders during a powhiri as they arrive at Tuahiwi Marae in Christchurch on November 22, 2019. Marty Melville/Pool via REUTERS

Britain's Prince Charles (Centre R) and his wife Camilla (Centre L) stand with Maori elders during a powhiri as they arrive at Tuahiwi Marae in Christchurch on November 22, 2019. Marty Melville/Pool via REUTERS

Britain's Prince Charles and his wife Camilla sit with Maori elders during a welcome to Tuahiwi Marae in Christchurch on November 22, 2019. Marty Melville/Pool via REUTERS

Britain's Prince Charles receives a Hongi before being fitted with a Maori cloak "Korowai" as he and his wife Camilla arrive at Tuahiwi Marae in Christchurch on November 22, 2019. Marty Melville/Pool via REUTERS

Prince Charles wears a traditional Maori cloak as he visits Tuahiwi Marae in Tuahiwi, New Zealand November 22, 2019. REUTERS/Tracey Nearmy

Prince Charles wears a traditional Maori cloak as he visits Tuahiwi Marae in Tuahiwi, New Zealand November 22, 2019. REUTERS/Tracey Nearmy

Prince Charles and Camilla the Duchess of Cornwell wear a traditional Maori cloak as they visit Tuahiwi Marae in Tuahiwi, New Zealand November 22, 2019. REUTERS/Tracey Nearmy

Prince Charles wears a traditional Maori cloak as he visits Tuahiwi Marae in Tuahiwi, New Zealand November 22, 2019. REUTERS/Tracey Nearmy

Camilla, the Duchess of Cornwall wears a traditional cloak as she looks at the Maoris who greeted her during a visit to Waitangi Treaty Grounds in Waitangi, New Zealand November 20, 2019. REUTERS/Tracey Nearmy

Prince Charles keeps an eye on the "dart" placed in front of him during a challenge by local Maori’s as he visits Waitangi Treaty Grounds in Waitangi, New Zealand November 20, 2019. REUTERS/Tracey Nearmy

Cricket - England Nets - Bay Oval, Mount Maunganui, New Zealand - November 19, 2019 New Zealand's Kane Williamson during a Maori welcome ceremony before nets REUTERS/Ross Setford

Cricket - England Nets - Bay Oval, Mount Maunganui, New Zealand - November 19, 2019 England's Joe Root during a Maori welcome ceremony before nets REUTERS/Ross Setford

Cricket - England Nets - Bay Oval, Mount Maunganui, New Zealand - November 19, 2019 England's Joe Root with New Zealand's Kane Williamson during a Maori welcome ceremony before nets REUTERS/Ross Setford

Cricket - England Nets - Bay Oval, Mount Maunganui, New Zealand - November 19, 2019 England's Jofra Archer during a Maori welcome ceremony before nets REUTERS/Ross Setford

Cricket - England Nets - Bay Oval, Mount Maunganui, New Zealand - November 19, 2019 England's Ben Stokes during a Maori welcome ceremony before nets REUTERS/Ross Setford

Cricket - England Nets - Bay Oval, Mount Maunganui, New Zealand - November 19, 2019 England's Joe Root, New Zealand's Kane Williamson and teammates with Kaumatua Turi Ngatai during the Powhiri, a Maori welcome ceremony after nets REUTERS/Ross Setford

Britain's Prince Charles and his wife Camilla, the Duchess of Cornwall, are given a traditional Maori greeting, Hongi, as they arrive for the Queen’s Colour Ceremony at the RNZAF Whenuapai Airbase in Auckland, New Zealand November 18, 2019. REUTERS/Tracey Nearmy

Britain's Prince Charles and his wife Camilla, the Duchess of Cornwall, are given a traditional Maori greeting, Hongi, as they arrive for the Queen’s Colour Ceremony at the RNZAF Whenuapai Airbase in Auckland, New Zealand November 18, 2019. REUTERS/Tracey Nearmy

Britain's Prince Charles and his wife Camilla, the Duchess of Cornwall, are given a traditional Maori greeting Hongi as they arrive for the Queen’s Colour Ceremony at the RNZAF Whenuapai Airbase in Auckland, New Zealand November 18, 2019. REUTERS/Tracey Nearmy

Britain's Prince Charles and his wife Camilla, the Duchess of Cornwall, are given a traditional Maori greeting Hongi as they arrive for the Queen’s Colour Ceremony at the RNZAF Whenuapai Airbase in Auckland, New Zealand November 18, 2019. REUTERS/Tracey Nearmy

Britain's Prince Charles and his wife Camilla, the Duchess of Cornwall, are given a traditional Maori greeting Hongi as they arrive for the Queen’s Colour Ceremony at the RNZAF Whenuapai Airbase in Auckland, New Zealand November 18, 2019. REUTERS/Tracey Nearmy

Ministers address hundreds of Maori protesters gathered to demonstrate against what protesters say is the disproportionate number of Maori children taken by social service agencies from their families, outside parliament in Wellington, New Zealand, July 30, 2019. REUTERS/Praveen Menon

A member of the Maori community poses at a memorial site for victims of the mosque shootings in Christchurch, New Zealand, March 17, 2019. REUTERS/Jorge Silva

A member of the Maori community poses at a memorial site for victims of the mosque shootings in Christchurch, New Zealand, March 17, 2019. REUTERS/Jorge Silva

Members of the Maori community sing outside Masjid Al Noor mosque, in memory of the victims of the mosque shootings, in Christchurch, New Zealand, March 17, 2019. REUTERS/Edgar Su

A member of the Maori community reacts near Masjid Al Noor mosque in Christchurch, New Zealand, March 17, 2019. REUTERS/Jorge Silva

A member of the Maori community reacts near Masjid Al Noor mosque in Christchurch, New Zealand, March 17, 2019. REUTERS/Jorge Silva

In celebration of Air New Zealand’s new non-stop service between Chicago and Auckland, a Kapa Haka group performs a Haka, an ancient Maori war dance, at Terminal 5 at O'Hare International Airport in Chicago, Illinois, U.S. November 30, 2018. REUTERS/Kamil Krzaczynski

Britain's Prince Harry receives a traditional Maori hongi greeting at a formal powhiri welcoming ceremony in Te Papaiouru, Rotorua, New Zealand October 31, 2018. REUTERS/Phil Noble TPX IMAGES OF THE DAY

Britain's Prince Harry receives a traditional Maori hongi greeting at a formal powhiri welcoming ceremony in Te Papaiouru, Rotorua, New Zealand October 31, 2018. REUTERS/Phil Noble

Britain's Prince Harry receives a traditional Maori hongi greeting at a formal powhiri welcoming ceremony in Te Papaiouru, Rotorua, New Zealand October 31, 2018. REUTERS/Phil Noble

Britain's Prince Harry receives a traditional Maori hongi greeting as he and Meghan, the Duchess of Sussex attend a formal powhiri welcoming ceremony and luncheon in Te Papaiouru, Rotorua, New Zealand October 31, 2018. REUTERS/Phil Noble

Britain's Prince Harry receives a traditional Maori hongi greeting as he and Meghan, the Duchess of Sussex attend a formal powhiri welcoming ceremony and luncheon in Te Papaiouru, Rotorua, New Zealand October 31, 2018. REUTERS/Phil Noble

Maori warriors are seen during a welcome ceremony for Britain's Prince Harry and Meghan, Duchess of Sussex, at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Britain's Prince Harry and Meghan, Duchess of Sussex, exchange hongi with Maori warriors during a welcome ceremony at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Britain's Prince Harry and Meghan, Duchess of Sussex, exchange hongi with Maori warriors during a welcome ceremony at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Britain's Prince Harry and Meghan, Duchess of Sussex, exchange hongi with Maori warriors during a welcome ceremony at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Maori warriors are seen during a welcome ceremony for Britain's Prince Harry and Meghan, Duchess of Sussex, at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Britain's Prince Harry and Meghan, Duchess of Sussex, look at a Maori warrior during a welcome ceremony at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Britain's Prince Harry and Meghan, Duchess of Sussex, look at a Maori warrior during a welcome ceremony at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Britain's Prince Harry is seen with Maori warriors during a welcome ceremony at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Maori warriors arrive ahead of a welcome ceremony for Britain's Prince Harry and Meghan, Duchess of Sussex, at Government House in Wellington, New Zealand, October 28, 2018. REUTERS/Phil Noble

Britain's Meghan, The Duchess of Sussex, rubs noses with a guest, as a traditional Maori greeting, at the opening of 'Oceania' at the Royal Academy of Arts in London, Britain, September 25, 2018. Picture taken September 25, 2018. Arthur Edwards/Pool via REUTERS TPX IMAGES OF THE DAY

Members of New Zealand's national rugby team, the All Blacks, perform the traditional Maori "Haka" dance after receiving the 2017 Princess of Asturias Award for Sports from Spain's King Felipe, during a ceremony at Campoamor Theatre in Oviedo, Spain October 20, 2017. REUTERS/Eloy Alonso

Members of New Zealand's national rugby team, the All Blacks, perform the traditional Maori "Haka" dance after receiving the 2017 Princess of Asturias Award for Sports from Spain's King Felipe, during a ceremony at Campoamor Theatre in Oviedo, Spain October 20, 2017. REUTERS/Eloy Alonso

Members of New Zealand's national rugby team, the All Blacks, perform the traditional Maori "Haka" dance after receiving the 2017 Princess of Asturias Award for Sports from Spain's King Felipe, during a ceremony at Campoamor Theatre in Oviedo, Spain October 20, 2017. REUTERS/Eloy Alonso

Members of New Zealand's national rugby team, the All Blacks, perform the traditional Maori "Haka" dance after receiving the 2017 Princess of Asturias Award for Sports from Spain's King Felipe, during a ceremony at Campoamor Theatre in Oviedo, Spain October 20, 2017. REUTERS/Eloy Alonso