Great Cormorant vs Oriental Stork
Phalacrocorax carbo compared with Ciconia boyciana
Side-by-Side Comparison
| Attribute | Great Cormorant | Oriental Stork |
|---|---|---|
| Scientific Name | Phalacrocorax carbo | Ciconia boyciana |
| Order | Suliformes | Ciconiiformes |
| Family | Phalacrocoracidae | Ciconiidae |
| Conservation Status | Least Concern | Endangered |
| Length | 90.0 cm (35.4 in) | 115.0 cm (45.3 in) |
| Wingspan | 145.0 cm (57.1 in) | 220.0 cm (86.6 in) |
| Weight | 2600.0 g (91.71 oz) | 5000.0 g (176.37 oz) |
| Diet | Fish caught by diving from the surface. Pursues prey underwater using powerful feet for propulsion. … | Fish, frogs, snakes, large insects, and small mammals caught in shallow wetlands. Feeds by wading … |
| Clutch Size | 1-7 | 2-6 |
| 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.
Oriental Stork
Wetlands, flooded rice paddies, rivers, and marshes. Nests on tall trees, utility poles, and artificial platforms.
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.
Oriental Stork
Essentially silent like all storks; produces loud mechanical bill-clattering at the nest as a greeting display. Chicks beg with hissing and squeaking. Rarely vocalizes otherwise.
Geographic Range & Migration
Great Cormorant
Very wide range across Europe, Asia, Africa, and Australasia. One of the most widespread cormorant species.
Oriental Stork
Breeds in the Russian Far East and northeastern China. Winters in southeastern China, Japan, and Korea.
Conservation Status
Great Cormorant
Oriental Stork
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
Oriental Stork
White body plumage with black flight feathers. Red bare skin around the eye and black bill distinguish it from the white stork. Pinkish-red legs.
Long, thick, straight, black bill
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.
Oriental Stork
The oriental stork is one of the most endangered stork species, with fewer than 3,000 individuals remaining in the wild. It was once widespread across East Asia but declined dramatically due to wetland drainage and pesticide use. Reintroduction programs in Japan and Korea have achieved notable success.