TVNZ’s Natural History Film Unit was founded in Dunedin around 1977. The first Wild South documentaries began filming a year later. The slot's initial focus was on New Zealand’s perilously endangered birds, eg the Chatham Island black robin (then the world’s rarest bird). The results won local and international notice, and a loyal audience. Wildtrack was a sister series showcasing natural history for young viewers. Wild South ended in 1997 when the Natural History Unit was purchased by Fox Studios; it later became internationally successful production company NHNZ.

This Wild South edition joins two legendary New Zealand wildlife documentarians — photographer Geoff Moon and sound recordist John Kendrick — on a 1988 trip to Kāpiti Island. Rangers are learning about, and looking after, the sanctuary’s manu (birds), who are “biological refugees” from the mainland, escaping introduced predators. Dogs monitoring kiwi, a kākā census, and tīeke (saddleback) nest boxes are featured. The two old mates narrate the visit, which includes Moon building a bush hide, and footage of a pioneering 1964 tīeke relocation from Hen Island.

Packed with creatures and landscapes that quite simply boggle the mind, the Nature Collection showcases New Zealand's impressive menagerie of nature and wildlife films. Many of the titles were made by powerhouse company NHNZ, which began around 1977 as the Natural History Unit, a small, southern outpost of state television. In this backgrounder, Peter Hayden — who had a hand in more than a few of these classic films — guides viewers through just what the Nature Collection has to offer.

From Māori myth to climbing and photography, to gliding and paraponting around its peak, Aoraki-Mt Cook is vividly captured in all its moods in this award-winning NHNZ portrait. Filmed for the centenary of the first ascent of a mountain that has claimed over 100 lives, it follows mountaineers as they climb toward the summit, re-enacting Tom Fyfe's pioneering pre-crampon route. Climbers, including Edmund Hillary, reminisce about encounters with NZ's highest and most iconic peak; and Bruce Grant takes the quick way down: a vertiginous ski descent.

This documentary tells the story of the inimitable kea. The 'Clown of the Alps' is heralded as the world’s smartest bird (its intelligence rivals a monkey’s). Kea are famous on South Island tracks and ski fields for their insatiable (and destructive) inquisitiveness. Curiosity almost killed the kea when it was labelled a sheep killer, and tens of thousands were killed for a bounty. After shots of baby kea being fed, there is extraordinary night footage in clip four of the 'avian wolf' in action. The award-winning film makes a compelling case for the charismatic kea as a national icon.

This film tells the story of the world’s rarest wading bird, the black stilt (kakī). With its precise beak and long pink legs the stilt is superbly adapted to the stony braided riverbeads of the McKenzie Country, but it is tragically unable to deal with new threats (rats, ferrets, habitat loss). An early doco for TVNZ’s Natural History Unit, the magnificently filmed drama of the stilt’s struggle for survival makes it “stand out as a classic of its genre” (Russell Campbell). It won the Gold Award at New York’s International Film & TV Festival (1984).

For 150 years, southern right whales (tohorā) were hunted to the brink of extinction. But the discovery of a “lost tribe” in the Southern Ocean sparked hope that their numbers are increasing. This documentary — made by veteran nature filmmaker Max Quinn for The Discovery Channel — follows a research expedition to learn about the pod. Breathtaking and intimate underwater footage, including a fabled white whale and new-born calf, reveals the behavior of these gentle giants. The award-winning film also captures soaring royal albatross, vomiting sea lions, and a flightless duck.

Flightless and nocturnal, the kākāpō is the world's heaviest parrot. By the 1970s the mysterious, moss-coloured bird was facing extinction, "evicted" to Fiordland mountains and Stewart Island by stoats and cats. Thanks to innovative night vision equipment, this film captured for the first time the bird's idiosyncratic courtship rituals, and the first chick found in a century. Marking the directing debut of NHNZ veteran Rod Morris, it screened in the Feltex Award-winning second season of Wild South, and won acclaim at the 1984 International Wildlife Film Festival.

The Southern Alps contain some of the youngest mountains in the world. In this NHNZ documentary awesome four seasons footage and sound design evoke the the tenuous richness of life in the vast, geologically dynamic landscape. Garrulous kea (the world’s only mountain parrot), Himalayan thar, “snow thrush” (crickets) and Mount Cook buttercup (the world’s largest) exist in a world of thundering avalanches and creaking glaciers. The classically filmed doco won a Merit Award at the 1993 International Wildlife Film Festival, Missoula.

In this 1992 Wild South documentary, pioneering underwater photographers Wade and Jan Doak investigate how fish have evolved over 400 million years on the Northland coast. They explore ocean dwellers off the Poor Knights Islands, where myriad nimble life forms thrive — from radar-like sensory systems and kaleidoscopic colouring, to the intricacies of jaw and fin shape. The Doaks conduct novel experiments to showcase them on camera in this Natural History New Zealand production. This episode was narrated by nature documentary filmmaker Peter Hayden.