"It guess it's certainly not in a healthy position, but an encouraging result of this study is that it has demonstrated to me that even though parents may be unable to speak Maori themselves, there's considerable enthusiasm to make sure their children have the opportunity."
Only 8 per cent of Māori mothers, and 6 per cent of fathers, said they had been expected to speak the language at home as children.
But the study found that by the time their own children were 9 months old, 15 per cent of Māori mothers and 7 per cent of fathers were speaking some of the language to the younger generation.
"One of the encouraging things was that the birth of a child was the catalyst for many parents to start learning Māori or speaking Māori at home," Dr Kingi said.
"Probably we live in more enlightened times now, and people can appreciate that sustaining the language is worthwhile for a whole range of reasons - maintaining the culture is one of them."
Dr Kingi, who is director of Massey University's Māori health research centre in Wellington, said he was also encouraged by non-Māori parents wanting their children to take part in the revival of the language.
Tauranga parent Tessa Cameron, a European New Zealander whose husband, Tamati, is of Northland's Te Rarawa iwi, has welcomed the findings as a move towards honouring the nation's bicultural foundations.
She said Mr Cameron did not hear Māori spoken at home when he was a child. But they have enrolled in a te reo course to keep up with their three older children, who bring new words home from school to share with Victor, 4.
Six-year-old Israel has been part of the Auckland University-led Growing Up in New Zealand study all his life.
How to learn the language
Courses
• Te Wananga o Aotearoa
www.twoa.ac.nz
• Te Whare Wananga o Awanuiarangi
www.wananga.ac.nz
• Te Wananga o Raukawa
www.wananga.com
• Te Wananga Takiura
www.twt.ac.nz
• Te Ataarangi
www.teataarangi.org.nz
www.whichcoursewhere.co.nz
Online
• www.maorilanguage.net
Mobile phone app
• www.maori.ac.nz
TV
• www.maoritelevision.com/tv/shows?category=13
Other links/resources
• www.tetaurawhiri.govt.nz