Great Cormorant vs Rough-faced Shag
Phalacrocorax carbo comparé à Leucocarbo carunculatus
Side-by-Side Comparison
| Attribut | Great Cormorant | Rough-faced Shag |
|---|---|---|
| Nom scientifique | Phalacrocorax carbo | Leucocarbo carunculatus |
| Ordre | Suliformes | Suliformes |
| Famille | Phalacrocoracidae | Phalacrocoracidae |
| Statut de conservation | Least Concern | Vulnerable |
| Longueur | 90,0 cm (35.4 in) | — |
| Envergure | 145,0 cm (57.1 in) | 57,6 cm (22.7 in) |
| Poids | 2600,0 g (91.71 oz) | 2577,5 g (90.92 oz) |
| Régime alimentaire | Fish caught by diving from the surface. Pursues prey underwater using powerful feet for propulsion. … | -- |
| Taille de la couvée | 1-7 | 1-3 |
| 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.
Rough-faced Shag
Geographic Range & Migration
Great Cormorant
Very wide range across Europe, Asia, Africa, and Australasia. One of the most widespread cormorant species.
Rough-faced Shag
Statut de conservation
Great Cormorant
Rough-faced 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
Rough-faced 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.
Rough-faced Shag
65–70 cm. Black above; white below; prominent orange-red facial caruncles. Endemic to Cook Strait area, New Zealand. Vulnerable; small fragmented population. Feeds on fish and invertebrates in coastal waters. Colonial nester on cliff ledges; distinct from other New Zealand shags.