Pacific black duck fact sheet – yurangai | Field of Mars EEC

What are pacific black ducks?

Pacific black ducks (Anas superciliosa) are common Australian waterbirds found in wetlands, creeks, ponds, rivers, mangroves, flooded grasslands and park lakes. Local Aboriginal Peoples may have referred to pacific black ducks as yurangai, the Darug name for duck. They are one of the most widespread ducks in Australia and are often seen swimming in pairs or small groups around Sydney waterways and suburban parks.

Pacific black ducks are medium-sized brown ducks with a pale face, dark stripe through the eye and a glossy green patch on their wings that flashes in sunlight or during flight. Their mottled brown feathers help camouflage them among reeds, muddy banks and wetland vegetation. Males and females look very similar.

Students may spot pacific black ducks around ponds and creeks in the Field of Mars Reserve and other Sydney wetlands. They are often seen dabbling for food by tipping forward in the water with their tail pointing upward. These ducks can live in both natural and urban environments and have adapted well to parks, stormwater ponds and suburban waterways.

A pacific black duck.

A pacific black duck with its distinctive dark stripe over its eye.

Where do pacific black ducks live?

Pacific black ducks live across most of Australia and can survive in many different wet environments. They are found in freshwater wetlands, creeks, ponds, farm dams, rivers, lakes, estuaries and flooded grasslands. Unlike some ducks that rely on deep water, pacific black ducks often feed in shallow edges of wetlands where aquatic plants and small animals are easier to reach.

In Sydney, students may see pacific black ducks in parks, stormwater ponds and bushland waterways including areas around the Field of Mars Reserve and Lane Cove River catchment. They often rest along muddy banks or among reeds and grasses near water. Their brown patterned feathers help them blend into wetland habitats while nesting or resting.

Pacific black ducks live in wetlands, creeks and ponds across Australia.

What do pacific black ducks eat?

Pacific black ducks mainly eat seeds and soft parts of aquatic plants, but they also feed on insects, crustaceans, snails and other small animals found in wetlands. They search for food both in water and on damp grassy ground near ponds and creeks.

These ducks are called dabbling ducks because they often feed by tipping their bodies forward into the water while reaching underwater with their beaks. This feeding behaviour helps them collect plant material and small animals from muddy wetland edges. By feeding on plants and small animals, pacific black ducks play an important role in wetland food webs.

Pacific black ducks search for food in shallow water.

What do pacific black ducks sound like?

Pacific black ducks make soft quacking and nasal calls that are often heard around wetlands and ponds. Females usually produce louder quacking calls than males, especially during breeding season or when protecting ducklings.

Ducklings make quiet peeping sounds to stay in contact with their mother while feeding or moving through wetland vegetation. These calls help families stay together in busy wetland habitats.

What is the life cycle of pacific black ducks?

Pacific black ducks usually breed when water and food are plentiful, often after rain. Nests may be built on the ground among reeds and grasses, inside tree hollows, in old bird nests or in sheltered vegetation close to water. Females line the nest with soft down feathers to keep the eggs warm.

After the eggs hatch, the ducklings leave the nest very quickly and can swim almost immediately. The mother protects and guides the ducklings while they learn to feed themselves. Young ducks grow quickly and can usually fly within about 7–8 weeks. Pacific black ducks may live for many years in safe wetland habitats.

Ducklings can swim soon after hatching.

What adaptations do pacific black ducks have to help them survive?

Pacific black ducks have waterproof feathers coated with oil that help keep them dry while swimming. Their webbed feet act like paddles, allowing them to move efficiently through water. Their broad beaks help filter food from mud and shallow wetlands.

Their mottled brown feathers provide camouflage that helps adults and ducklings stay hidden among reeds, grasses and muddy wetland edges. Pacific black ducks are also highly adaptable and can survive in natural wetlands as well as urban waterways and park ponds. Their ability to use many different wet habitats has helped them remain widespread across Australia.

Camouflaged feathers help pacific black ducks blend into wetland habitats.

Why are pacific black ducks important?

Pacific black ducks are important members of wetland ecosystems. They help spread aquatic plant seeds between wetlands and are part of complex food webs involving insects, fish, reptiles and birds of prey.

Healthy populations of pacific black ducks can also indicate that wetlands still provide food, shelter and clean water for wildlife. Wetlands that support ducks often support frogs, insects, fish and many other species. Protecting wetlands helps many living things survive.

Healthy wetlands support pacific black ducks and many other species.

How can you help pacific black ducks?

People can help pacific black ducks by protecting wetlands, creeks and ponds from pollution and rubbish. Leaving natural vegetation around waterways helps provide shelter and nesting places for ducks and other wetland animals.

Students can also help by observing ducks quietly without chasing or feeding them unsuitable food like bread. Native plants around ponds and wetlands provide safer habitat and healthier food sources for wildlife. Looking after local waterways helps protect many species that share wetland environments.

Native wetland plants help protect habitat for ducks and other wildlife.

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• Field of Mars Reserve fact sheet – Learn about local bushland, creeks, wetlands and wildlife habitats.
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• Common eastern froglet fact sheet – Learn about a small frog that can live near damp ground, ponds and drains.
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• Dragonfly fact sheet – Find out about insects that live near water as nymphs and adults.

Food webs and ecological relationships

• Insects fact sheet – Explore small animals that are part of wetland food webs.
• Mosquito fact sheet – Learn about insects that breed in water and provide food for other animals.

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