Dusky moorhen fact sheet | Field of Mars EEC

What are dusky moorhens?

Dusky moorhens are medium-sized waterbirds that live around wetlands, ponds, creeks, swamps and urban waterways across eastern Australia. Their scientific name is Gallinula tenebrosa. These birds are often seen walking along the edges of lakes or swimming slowly through reeds while searching for food.

Dusky moorhens have dark grey to black feathers, a bright red bill with a yellow tip, long greenish legs and a white stripe under the tail. They are strong swimmers and can also walk across floating vegetation using their large feet and long toes. Students visiting wetlands in Sydney may notice them bobbing their tails as they move or calling noisily from reeds near the water.

Dusky moorhens are common in parks, stormwater ponds and bushland wetlands around Sydney, including waterways connected to Lane Cove National Park and the Field of Mars Reserve. They often live in family groups and work together to protect nesting areas and raise chicks.

Dusky moorhen standing on the ground showing its long strong legs and very long splayed toes. A dusky moorhen.

Fast facts – Dusky moorhen

Scientific nameGallinula tenebrosa

Scientific group – Dusky moorhens are waterbirds in the rail family.

Appearance – Dusky moorhens have dark feathers, a red bill with a yellow tip, long green legs and white feathers under the tail.

Size – Adult dusky moorhens grow to about 35–40 centimetres long.

Diet – Dusky moorhens eat water plants, grass, seeds, insects, snails and small aquatic animals.

Habitat – Dusky moorhens live near freshwater wetlands, ponds, creeks, marshes and slow-moving waterways.

Life cycle – Dusky moorhens hatch from eggs in floating or hidden nests and young birds can feed themselves soon after hatching. They usually live for several years in the wild.

Special behaviour – Dusky moorhens flick their tails while walking and use their large feet to move across soft mud and floating plants.

Close-up of a dusky moorhen’s head showing its red face shield and red beak with a yellow tip. Dusky moorhens have a red face shield which grows brighter in the warmer months.

Where do dusky moorhens live?

Dusky moorhens live in freshwater wetlands across eastern and south-eastern Australia. They are commonly found around ponds, dams, marshes, creeks, rivers and lakes with reeds or dense waterside plants. These birds prefer calm water where they can hide from predators and build nests among vegetation.

In Sydney, dusky moorhens are often seen in urban parks, school ponds, stormwater wetlands and bushland reserves. Students visiting wetlands near the Field of Mars Reserve or Lane Cove National Park may spot them swimming close to reeds, feeding on grassy banks or resting beside the water. Their ability to live in both natural and urban wetlands has helped them remain common in many areas.

A wetland habitat with reeds, shallow water and a dusky moorhen near the shoreline. Dusky moorhens live around calm wetlands with dense waterside plants.

What do dusky moorhens eat?

Dusky moorhens are omnivores, which means they eat both plant and animal material. Much of their diet includes aquatic plants, grass shoots, seeds and algae. They also eat insects, worms, snails, tadpoles and other small animals found around wetlands.

These birds usually feed while walking slowly through shallow water or along muddy edges of ponds and creeks. They pick food from the ground, pull apart soft plants and sometimes forage in groups. Dusky moorhens play an important role in wetland food webs because they help recycle plant material and provide food for larger predators.

Dusky moorhen walking along the shoreline holding a small fish in its beak. Dusky moorhens feed on plants and small animals found around wetlands.

What do dusky moorhens sound like?

Dusky moorhens make a range of croaks, squawks, chuckling calls and sharp alarm sounds. They are often noisy when defending territory, warning family groups about danger or competing for food. Their calls can echo across wetlands, especially during the breeding season.

Young dusky moorhens make softer peeping sounds to stay in contact with adults. Students exploring wetlands may hear these birds calling from dense reeds before they see them.

What is the life cycle of dusky moorhens?

Dusky moorhens usually breed during wetter months when food and nesting sites are plentiful. They build nests from reeds, grasses and other wetland plants in dense vegetation close to water. Females lay several eggs, and both parents help incubate them and protect the nest.

After hatching, the black fluffy chicks leave the nest quickly and begin following adults through the wetland. Young birds learn to feed themselves soon after hatching but continue receiving protection from adults. Family groups sometimes include older juveniles helping to care for younger chicks.

Dusky moorhen sitting in a messy bowl-shaped nest made of reeds and rushes floating among lily pads. A dusky moorhen on its nest.

What adaptations do dusky moorhens have to help them survive?

Dusky moorhens have several adaptations that help them survive in wetland environments. Their large feet and long toes spread their weight across soft mud and floating plants, helping them walk through wetlands without sinking. Their waterproof feathers help keep them warm and dry while swimming.

These birds also use behaviour to stay safe. Their dark feathers help camouflage them in shadowy reeds and wetland vegetation. When threatened, dusky moorhens may hide quietly among reeds or run quickly across the water’s edge. They also use loud alarm calls and group behaviour to warn family members about danger.

Dusky moorhen walking across floating waterlily pads using its long toes to spread its weight. The large feet of dusky moorhens help them move across soft wetland surfaces.

Why are dusky moorhens important?

Dusky moorhens are an important part of wetland ecosystems. They help spread plant seeds, recycle nutrients and control populations of insects and other small animals. Their nests and feeding behaviour also influence wetland plant growth and habitat structure.

These birds are also part of the food web. Eggs and young birds may be eaten by snakes, large fish, foxes and birds of prey. Healthy populations of dusky moorhens can indicate that wetlands still provide food, clean water and shelter for wildlife.

Dusky moorhen leaning forward with its beak open while shrieking a loud call. Dusky moorhens are part of complex wetland food webs.

How can you help dusky moorhens?

People can help dusky moorhens by protecting wetlands and keeping waterways healthy. Rubbish, pollution and habitat clearing can damage the places these birds need for nesting and feeding. Native wetland plants provide important shelter and food for wildlife.

Students can help by staying on tracks near wetlands, keeping rubbish out of waterways and observing wildlife from a distance. Pet dogs should be kept under control near nesting areas so birds and chicks are not disturbed.

A healthy freshwater wetland with reeds, shallow water and habitat for waterbirds. Healthy wetlands provide shelter and food for dusky moorhens and other wildlife.

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Attributions

References

BirdLife Australia. Dusky Moorhen. [online] Available at: https://birdlife.org.au/bird-profiles/dusky-moorhen

Australian Museum. Dusky Moorhen. [online] Available at: https://australian.museum/learn/animals/birds/dusky-moorhen/

Museum Victoria. Dusky Moorhen. [online] Available at: https://collections.museumsvictoria.com.au/species/8426

NSW National Parks and Wildlife Service. Wetlands. [online] Available at: https://www.environment.nsw.gov.au/topics/water/wetlands

Birds in Backyards. Dusky Moorhen. [online] Available at: https://www.birdsinbackyards.net/species/Gallinula-tenebrosa

Image attributions

Dusky moorhens have long, strong legs and toes adapted to wetland conditions. - "Dusky Moorhen" by H.A.S PhotoDesigns~Heart+Soul~CC BY 2.0(cropped)

An impressive red face shield which grows brighter in the warmer months. - "Dusky Moorhen" by anthonykaton778CC BY 2.0 (cropped)

Long grasses and reeds are a great place to hide. - "Dusky Moorhen" by 0ystercatcherCC BY-NC-SA 2.0 (cropped)

A little fish treat for a hungry dusky moorhen - "Dusky Moorhen ( take - away Dinner )" by friendsintheairCC BY-SA 2.0 (cropped)

Dusky moorhens have strong legs with long toes to help them walk across floating beds of reeds, sticks and water lily pads. - "Dusky Moorhen (Gallinula tenebrosa)" by Brendan A RyanCC BY-NC-SA 2.0 (cropped)

Dusky moorhens are noisy birds. They shriek and honk loudly to mark territory, defend their nests and to raise alarm about potential threats. - "Dusky Moorhen (Gallinula tenebrosa)" by darrylkirby.  CC BY-NC-SA 2.0 (cropped)

A floating nest amongst the lily pads - "Dusky Moorhen (Gallinula tenebrosa) - Hunter Valley Gardens.01" by Geoff WhalanCC BY-NC-ND 2.0 (cropped)

Healthy wetlands provide shelter and food for dusky moorhens and other wildlife. – ‘Dusky Moorhen Water Lilies.jpg’ by Toby Hudson. Creative Commons Attribution-Share Alike 3.0. Available at: https://commons.wikimedia.org/wiki/File:Dusky_Moorhen_Water_Lilies.jpg

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