Royal Penguin vs King Penguin
Eudyptes schlegeli compared with Aptenodytes patagonicus
Side-by-Side Comparison
| Attribute | Royal Penguin | King Penguin |
|---|---|---|
| Scientific Name | Eudyptes schlegeli | Aptenodytes patagonicus |
| Order | Sphenisciformes | Sphenisciformes |
| Family | Spheniscidae | Spheniscidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | 95.0 cm (37.4 in) |
| Wingspan | 24.2 cm (9.5 in) | 64.0 cm (25.2 in) |
| Weight | 4900.0 g (172.84 oz) | 14000.0 g (493.84 oz) |
| Diet | -- | Primarily lanternfish and squid caught during deep dives. Routinely dives to 100-300 meters, sometimes exceeding … |
| Clutch Size | 2 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
King Penguin
Breeds on sub-Antarctic islands with flat or gently sloping beaches. Forages in the Southern Ocean.
Song & Call Comparison
Royal Penguin
King Penguin
Uses individually unique complex calls for mate and chick recognition in noisy colonies. Produces a loud, musical trumpeting. Chick whistles are distinctive per family unit.
Geographic Range & Migration
Royal Penguin
King Penguin
Sub-Antarctic islands including South Georgia, Crozet, Kerguelen, Macquarie, and Falkland Islands.
Conservation Status
Royal Penguin
King Penguin
How to Tell Them Apart
Royal Penguin
King Penguin
Dark blue-grey back with white belly. Vivid orange-gold auricular patches on the sides of the head and upper breast. Silvery-grey upperparts.
Long, slender, slightly decurved bill with orange mandible plates
About These Birds
Royal Penguin
Royal Penguin, 65–76 cm, breeds exclusively on Macquarie Island in the Southern Ocean. Like Macaroni Penguin but with a white (not black) face — the most obvious distinction. Crested penguin; krill and fish feeder. Vulnerable; breeds in one of the world's largest seabird colonies (~800,000 pairs).
King Penguin
The king penguin is the second-largest penguin species, known for its striking orange-gold head markings. Unlike most penguins, king penguins do not build nests — they incubate their single egg on their feet. Their 14-16 month breeding cycle is the longest of any penguin species.