African Pygmy Goose

About

The African Pygmy Goose is a very small, perching duck, often considered the smallest waterfowl in Africa. Despite its name, it is technically a perching duck rather than a true goose, characterized by its small size, short bill, and distinctive plumage. It is highly aquatic, spending most of its time on water, and is known for its agile flight and ability to perch in trees.

Size & lifespan

Length

28-33 cm

Wingspan

48-55 cm

Weight

249-286 g (male), 220-290 g (female)

Lifespan

Up to 10 years in the wild, potentially longer in captivity.

Diet

Herbivore (primarily aquatic vegetation, seeds, and some invertebrates)

Physical characteristics

Plumage

Males are strikingly patterned with a white face, black crown, and a prominent iridescent green patch on the side of the head extending from the eye to the nape. The back is dark iridescent green, and the flanks are chestnut. The breast and belly are white. Females are duller, with a greyish-brown crown and hindneck, a dark eye-stripe, and a white face. Their back is dark brown, and flanks are mottled brown and white. Both sexes have white wing patches visible in flight.

Beak shape

Short, goose-like bill, bright yellow in males with a black tip, duller yellow to brownish in females.

Eye color

Dark brown.

Leg color

Dark grey to blackish.

Distinguishing features

Its extremely small size, short bill, and the male's distinctive iridescent green head patch and chestnut flanks are key. The white face and dark eye-stripe of the female are also characteristic.

Juvenile appearance

Juveniles resemble adult females but are generally duller, with less distinct markings and a more mottled appearance.

Seasonal changes

No significant seasonal plumage changes. Breeding and non-breeding plumages are essentially the same.

Sexual dimorphism

Pronounced. Males are much more brightly colored with iridescent green on the head and chestnut flanks. Females are duller, with a greyish-brown head and mottled flanks.

How to identify

1. 1

   Size and Shape

   Look for a very small, compact duck with a short, goose-like bill. It often perches on branches over water.

2. 2

   Male Plumage

   Identify the male by its striking white face, black crown, iridescent green patch on the side of the head, dark green back, and rich chestnut flanks. The bright yellow bill with a black tip is also distinctive.

3. 3

   Female Plumage

   Identify the female by her duller appearance: greyish-brown crown, dark eye-stripe, white face, dark brown back, and mottled brown and white flanks. Her bill is duller yellow/brown.

4. 4

   Behavior

   Observe its feeding behavior (dabbling, up-ending) and its tendency to perch in trees or on floating vegetation. Its swift, direct flight is also a clue.

5. 5

   Habitat

   Look for it in still or slow-moving freshwater bodies with abundant floating and emergent vegetation, especially water lilies.

Habitat & range

Biomes

Freshwater wetlands, swamps, slow-moving rivers, lakes, and lagoons.

Geographic range

Widespread across sub-Saharan Africa, from Senegal and Gambia east to Ethiopia and Somalia, and south to South Africa. Also found on Madagascar.

Elevation range

Typically found from sea level up to approximately 1500 meters, occasionally higher.

Preferred environments

Prefers still or slow-moving waters with abundant floating vegetation (e.g., water lilies, Nymphaea spp.) and emergent vegetation, often with scattered trees or snags for perching.

Behavior

Activity time

Diurnal, most active during the early morning and late afternoon.

Feeding habits

Feeds primarily on the seeds and vegetative parts of aquatic plants, especially water lilies. They also consume small aquatic insects, larvae, and small crustaceans. They forage by dabbling at the surface or up-ending in shallow water, and occasionally dive for food.

Social behavior

Typically seen in pairs or small family groups. Can form larger flocks outside the breeding season, sometimes numbering in the hundreds, especially at favored feeding or roosting sites.

Flight pattern

Flight is swift and direct, often low over the water. They are agile fliers and can maneuver well through dense vegetation. They often perch in trees overhanging water.

Migration pattern

Generally resident, but undertakes local movements in response to water levels and food availability. Some populations may make longer-distance movements during severe droughts or floods.

Territoriality

Pairs can be territorial during the breeding season, defending their nesting area and immediate surroundings.

Breeding & reproduction

Breeding season

Varies geographically, typically coinciding with the rainy season and high water levels, allowing for abundant vegetation. Can breed year-round in some areas with stable water conditions.

Nesting habits

Nests are typically placed in tree hollows, often old barbet or woodpecker holes, close to water. They may also use abandoned nests of other birds, or occasionally dense vegetation near the water's edge. The nest is lined with down.

Clutch size

6-12 eggs, typically 7-9.

Egg description

Eggs are creamy white to pale buff, smooth, and oval. Average size is approximately 40 x 30 mm.

Incubation period

21-23 days, primarily by the female.

Fledging period

Approximately 42-45 days. Ducklings are precocial and leave the nest shortly after hatching, but remain with parents.

Parental care

Both parents care for the ducklings, guiding them to feeding areas and protecting them from predators. The female does most of the incubation.

Where to find

Field tips

1. Scan floating vegetation. They often hide among water lilies and other aquatic plants, making them difficult to spot. Look for movement or small heads popping up.
2. Check overhanging branches. African Pygmy Geese frequently perch in trees or on snags overhanging the water, especially during the heat of the day or for roosting.
3. Use binoculars. Their small size and cryptic habits necessitate good optics for clear identification, especially of the subtle female plumage.
4. Be patient and quiet. They can be shy and easily disturbed. Approach wetland areas slowly and quietly.
5. Look during early morning or late afternoon. These are typically their most active feeding times.

Similar species

Quick facts

Smallest African Waterfowl:

Indeed the smallest duck species found in Africa.

Perching Duck:

Despite its name, it's a perching duck, not a true goose, and can perch in trees.

Diet Specialization:

Highly specialized on seeds and leaves of aquatic plants, particularly water lilies.

Sexual Dimorphism:

Males are much more colorful than females.

Nesting in Tree Hollows:

Prefers to nest in tree cavities, often old barbet or woodpecker holes.

Fun facts

• The genus name 'Nettapus' comes from Ancient Greek, meaning 'duck-foot', referring to their webbed feet.
• Despite their small size, they are surprisingly strong fliers and can cover considerable distances during local movements.
• Their iridescent green head patch in males is a structural color, meaning it's produced by the microscopic structure of the feathers, not by pigments.
• They are often seen 'walking' across floating vegetation, using their relatively long toes to distribute their weight.

Scientific classification

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Anseriformes

Family

Anatidae

Genus

Nettapus

Species

Nettapus auritus

Explore the African Pygmy Goose