Birds Active day and night

Yellow-billed Duck

Anas undulata

iNaturalist eBird Wikipedia

With its signature bright yellow bill and mottled plumage, the Yellow-billed Duck is the most common dabbler in southern Africa. A social and adaptable species, it is a delightful frequent visitor to backyard ponds and local wetlands alike.

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Quick Identification

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Size

Length: 51–58 cm (20–23 in); Weight: 0.5–1.3 kg (1.1–2.9 lbs)

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Colors

Mottled grey and brown body with pale scalloped edges; bright yellow bill with a black stripe on the top; iridescent green to blue wing patch (speculum) bordered with white.

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Key Features

Bright yellow bill with a black saddle on the culmen
Mottled grey-brown plumage with no sexual dimorphism
Greenish-blue iridescent wing speculum
Dark crown contrasting with a paler face

When You’ll See Them

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Activity pattern Active day and night

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Peak hours 6-10 AM, 4-7 PM

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Season Year-round

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Diet Primarily herbivorous, foraging for seeds, fruit, and the roots of aquatic plants; they also consume aquatic insects and larvae.

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Habitat Freshwater wetlands, including dams, marshes, slow-moving rivers, and suburban ponds.

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Where Does the Yellow-billed Duck Live?

The Yellow-billed Duck is a quintessential African waterbird, native to the eastern and southern reaches of the continent. Its core population thrives in South Africa, extending northward through Zimbabwe, Zambia, and East Africa into the highlands of Ethiopia. While it remains within the African continent year-round, its local presence shifts as it tracks water availability across the savanna and highveld.

Basemap © OpenStreetMap contributors

10 Countries

8.5M km² Range

Least Concern Conservation

ZA South Africa KE Kenya ET Ethiopia ZW Zimbabwe ZM Zambia BW Botswana NA Namibia TZ Tanzania UG Uganda Malawi

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iNaturalist / Verified observation data

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Behavior

The Yellow-billed Duck is a classic dabbling duck, characteristically seen tipping its body tail-up in shallow water to reach aquatic vegetation. Unlike many other duck species, the males and females look almost identical, and both are known for their social nature. Outside of the breeding season, they are highly gregarious, often congregating in massive flocks that can number in the hundreds near stable water sources.

While they are generally wary in the wild, Yellow-billed Ducks have adapted remarkably well to human-modified landscapes. They are frequent visitors to suburban garden ponds, golf course hazards, and urban parks. They are not migratory in the traditional sense but are nomadic, wandering across the landscape to find permanent water during the dry winter months. Their presence is often announced by a typical mallard-like quack from the females and a higher-pitched whistle from the males.

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Camera Tips

To capture high-quality footage of Yellow-billed Ducks, position your AI camera approximately 1 to 2 feet above the ground, facing the water's edge. These ducks prefer to 'loaf' on flat, muddy banks or low rocks near the water to preen their feathers. Aiming your camera at these basking spots rather than the open water will result in much clearer, more stable images of the birds while they are stationary.

While they are active throughout the day, the golden hour shortly after sunrise is the best time for capturing the brilliant iridescence of their green wing speculum. Yellow-billed Ducks are also quite active at night, particularly during a full moon, so ensure your camera is set to its highest sensitivity for infrared night vision. If your camera supports video, the 'dabbling' motion—where they tip vertically into the water—makes for excellent behavioral clips.

You can encourage these ducks to visit a specific spot by providing a small amount of floating waterfowl feed or cracked corn in the shallows. However, be careful not to overfeed, as decaying food can spoil the water. In a backyard setting, avoid placing the camera in areas with high wind and tall reeds, as the constant movement can cause false triggers and deplete your battery. Instead, look for a sheltered cove or a quiet corner of the pond where the ducks feel safe from predators.

Similar Species

Species that look similar or are commonly confused with Yellow-billed Duck.

African Black Duck

Much darker plumage (nearly black) with white spots on the back and a dark grey bill.

Mallard

Males have a metallic green head and a white neck ring, unlike the uniform mottled head of the Yellow-billed Duck.

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Frequently Asked Questions

Yellow-billed Ducks are most active during the early morning and late afternoon. However, they are known to be partially nocturnal, often feeding or moving between water bodies under the cover of darkness to avoid predators.

Maintain a clean, chemical-free freshwater pond with shallow edges and plenty of aquatic plants like water lilies. Providing a safe, flat area near the water for preening will also make your garden more attractive to them.

They are mostly vegetarian, eating the seeds and soft parts of aquatic plants. They will also graze on lawn grass and occasionally eat small aquatic invertebrates and insect larvae found in the mud.

Yes, they are highly adaptable and frequently live in urban environments. They are commonly seen on golf courses, in city parks, and in large residential gardens with permanent water features.

Male Mallards have a distinctive bright green head and a yellow bill, whereas both male and female Yellow-billed Ducks have mottled brown heads and bodies with that iconic bright yellow bill.

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