African Penguin vs Secretary Bird
Spheniscus demersus compared with Sagittarius serpentarius
Side-by-Side Comparison
| Attribute | African Penguin | Secretary Bird |
|---|---|---|
| Scientific Name | Spheniscus demersus | Sagittarius serpentarius |
| Order | Sphenisciformes | Accipitriformes |
| Family | Spheniscidae | Sagittariidae |
| Conservation Status | Endangered | Endangered |
| Length | 60.0 cm (23.6 in) | 130.0 cm (51.2 in) |
| Wingspan | 42.0 cm (16.5 in) | 210.0 cm (82.7 in) |
| Weight | 3100.0 g (109.35 oz) | 3700.0 g (130.51 oz) |
| Diet | Small schooling fish, especially sardines and anchovies. Forages within 40 km of the colony, diving … | Snakes, lizards, small mammals, and large insects. Hunts on foot, stomping prey to death with … |
| Clutch Size | 2 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
African Penguin
Rocky coastlines and offshore islands of southern Africa. Nests in burrows, under boulders, or in surface scrapes.
Secretary Bird
Open grasslands, savannas, and light woodland across sub-Saharan Africa. Avoids dense forests and very arid regions.
Song & Call Comparison
African Penguin
A loud, donkey-like braying 'waaah-waaah' — hence its nickname 'jackass penguin'. Also gives softer grunts and contact calls at the colony. Highly vocal on breeding beaches.
Secretary Bird
A surprisingly deep, resonant croaking 'kowrr-kowrr' often heard at dawn on African savannas. Also gives pig-like grunting sounds. Mostly silent compared to true songbirds.
Geographic Range & Migration
African Penguin
Coastal southwestern Africa from Namibia to Port Elizabeth, South Africa. The only penguin species breeding in Africa.
Secretary Bird
Sub-Saharan Africa from Senegal and Somalia south to South Africa. Resident throughout its range.
Conservation Status
African Penguin
Secretary Bird
How to Tell Them Apart
African Penguin
Black upperparts and white underparts with a distinctive black horseshoe-shaped band across the breast. Pink patches of bare skin above the eyes help with thermoregulation.
Sturdy, pointed, black bill with a grey band near the tip
Secretary Bird
Grey body plumage with black flight feathers and thigh feathers. Distinctive long black crest feathers trail from the back of the head. Orange-red bare facial skin.
Short, strong, hooked greyish bill with a yellowish cere
About These Birds
African Penguin
The African penguin is the only penguin species native to the African continent, also called the jackass penguin for its donkey-like braying call. Their population has plummeted over 95% since pre-industrial times due to egg collection, oil spills, and competition with commercial fisheries for sardine and anchovy stocks.
Secretary Bird
The secretary bird is the only raptor that hunts primarily on foot, striding through grasslands on crane-like legs up to 1.2 meters tall. Its name may derive from the crest feathers resembling quill pens tucked behind a secretary's ear. The species is classified as Endangered due to habitat loss and decline across much of its range.