Great Cormorant vs Imperial Shag
Phalacrocorax carbo compared with Leucocarbo atriceps
Side-by-Side Comparison
| Attribute | Great Cormorant | Imperial Shag |
|---|---|---|
| Scientific Name | Phalacrocorax carbo | Leucocarbo atriceps |
| Order | Suliformes | Suliformes |
| Family | Phalacrocoracidae | Phalacrocoracidae |
| Conservation Status | Least Concern | Least Concern |
| Length | 90.0 cm (35.4 in) | — |
| Wingspan | 145.0 cm (57.1 in) | 59.1 cm (23.3 in) |
| Weight | 2600.0 g (91.71 oz) | 2294.6666666666665 g (80.94 oz) |
| Diet | Fish caught by diving from the surface. Pursues prey underwater using powerful feet for propulsion. … | -- |
| Clutch Size | 1-7 | 1-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Great Cormorant
Coasts, estuaries, lakes, rivers, and reservoirs. Nests in colonies in trees, on cliffs, or on the ground.
Song & Call Comparison
Great Cormorant
Deep, guttural grunts and 'karrr' calls at colonies. Bill-clicking and hissing in threat displays. Silent at sea. Colonial noise can be deafening during the breeding season.
Imperial Shag
Geographic Range & Migration
Great Cormorant
Very wide range across Europe, Asia, Africa, and Australasia. One of the most widespread cormorant species.
Imperial Shag
Conservation Status
Great Cormorant
Imperial Shag
How to Tell Them Apart
Great Cormorant
All black with a bronze-green gloss. White throat patch and white thigh patches in breeding season. Yellow-orange face patch around the bill base.
Long, hooked, dark bill with a yellow gape
Imperial Shag
About These Birds
Great Cormorant
The great cormorant is one of the most widespread seabirds in the world. Unlike most waterbirds, cormorants lack fully waterproof plumage, leading to the iconic pose of standing with wings spread open to dry. In Asia, cormorants have been used by fishermen to catch fish for over a thousand years.
Imperial Shag
72 cm. Black above; white below; vivid orange-yellow caruncles and blue orbital ring. Breeds circumpolar southern South America, Falklands, and Antarctic Peninsula. Feeds on fish and invertebrates in cold Southern Ocean inshore waters. Diverse complex of closely related southern shag species.