hides in the northland swamp edges
- Size
- Length: 45–50 cm, Weight: 0.5–0.7 kg
- Lifespan
- 5–8 years
- Diet
- Omnivorous – feeds on aquatic invertebrates molluscs crustaceans seeds and small fish. Dabbles in shallow water and probes into mud often feeding at night.
- Habitat
- Wetland edges swampy forests and damp pasture. Prefers shallow freshwater wetlands with dense vegetation for cover including raupō sedges and flax for daytime hiding.
- Range
- Found in scattered locations throughout North Island with strongholds in Northland Waikato and Coromandel. Also present on Great Barrier Island and few South Island sanctuaries.
- Endemism
- Endemic
- Main Threats
- Predation by rats stoats ferrets cats and harriers is primary threat particularly to nesting females. Also threatened by habitat loss from wetland drainage and hybridisation.
- Population
- A one-country duck endemic to New Zealand. Populations rebounded from low of around 1000 birds in 1990s to several thousand today due to intensive predator control.
- Conservation Status
- At Risk - Declining
- Human Risk
- harmless
- Handling Note
- endangered native duck, do not approach or disturb
- Conservation Note
- Endemic duck; declining in mainland populations due to predation and habitat loss, with stable populations on offshore islands.
- Assessment
- NZTCS Birds (2021)
- Te Ao Māori
- The pāteke was once so common it served as a staple food source a pantry bird for Māori living near the coast. Today its status has shifted from the dinner plate to the pedestal. It is a taonga species a living barometer for the health of lowland swamps. If the pāteke is thriving the water is probably clean enough to trust. Its return signals a healing landscape where wetlands are no longer just drains for farms but living ecosystems once more.
New Zealand's rarest dabbling duck is a creature that was too trusting. It evolved in a world that played fair without stoats or rats and spent millions of years assuming the night was safe. That assumption no longer holds. The pāteke has been forced into a graveyard-shift lifestyle hiding in dense swamp-grass by day and emerging only after dark to forage. A duck that had to change its habits to survive.
Visually the bird is not trying to win beauty pageants. It is a sensible mottled brown decorated with a subtle white eye-ring that gives it a look of permanent surprise. Males develop a green gloss on their heads during the breeding season. Females remain strictly mud-coloured. This is not a stylistic choice. It is a survival strategy to avoid being eaten while sitting on nests. Camouflage is the only defence that works when you cannot fly away fast enough.
The reason this duck still exists is due to massive expensive intervention. Programmes on Great Barrier Island have acted as a biological engine pumping out captive-reared birds for release into managed safe zones on the mainland. The numbers have shifted from a terrifying low of 1000 birds in the 1990s to a few thousand today. Scientists use the word recovering. It is a fragile victory. The trend is upward but the margin for error remains thin.
The threats have not left. We have just built a few fences. Wetlands are drained. Cats patrol the margins. The pāteke hides in the remaining grass waiting for night. It does not know it is recovering. It does not know it is fragile. It operates on instinct not statistics. The predator control programmes are effective but they require constant human effort. Nature does not maintain these sanctuaries on its own.
It persists in the wet margins a small brown ghost of the wetlands that refuses to clock out for good. The spatulate bill probes the mud for worms snails and aquatic gunk. The white eye-ring catches the moonlight. The bird moves quietly through the raupō and sedges. It is a nocturnal specialist in a diurnal world. This adaptation keeps it alive but it also makes it hard to see. Most people never know it is there. That is perhaps the best outcome possible. It just wants to eat a snail. It carries on.