Rock Shag vs Chatham Islands Shag
Leucocarbo magellanicus compared with Leucocarbo onslowi
Side-by-Side Comparison
| Attribute | Rock Shag | Chatham Islands Shag |
|---|---|---|
| Scientific Name | Leucocarbo magellanicus | Leucocarbo onslowi |
| Order | Suliformes | Suliformes |
| Family | Phalacrocoracidae | Phalacrocoracidae |
| Conservation Status | Least Concern | Critically Endangered |
| Length | — | — |
| Wingspan | 50.1 cm (19.7 in) | 51.8 cm (20.4 in) |
| Weight | 1500.0 g (52.91 oz) | 2095.0 g (73.90 oz) |
| Diet | -- | -- |
| Clutch Size | 2-4 | 3 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Rock Shag
Critically Endangered
Chatham Islands Shag
About These Birds
Rock Shag
60–66 cm. Black above; white below; vivid red-orange caruncles at bill base in breeding. Breeds coasts and islands of southern Chile, Argentina, and Falkland Islands. Feeds on fish in cold sub-Antarctic inshore waters. Nest on cliff ledges in small colonies; resident.
Chatham Islands Shag
63 cm. Black and white; orange-red caruncles at bill base. Endemic to Chatham Islands, New Zealand. Critically Endangered; total population fewer than 1,000 birds. Restricted to a few Chatham Islands colonies; feeds on fish and invertebrates in surrounding coastal waters.