Heard Shag vs Chatham Islands Shag
Leucocarbo nivalis compared with Leucocarbo onslowi
Side-by-Side Comparison
| Attribute | Heard Shag | Chatham Islands Shag |
|---|---|---|
| Scientific Name | Leucocarbo nivalis | Leucocarbo onslowi |
| Order | Suliformes | Suliformes |
| Family | Phalacrocoracidae | Phalacrocoracidae |
| Conservation Status | Not Evaluated | Critically Endangered |
| Length | — | — |
| Wingspan | — | 51.8 cm (20.4 in) |
| Weight | 2931.0 g (103.39 oz) | 2095.0 g (73.90 oz) |
| Diet | -- | -- |
| Clutch Size | 2-4 | 3 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Not Evaluated
Heard Shag
Critically Endangered
Chatham Islands Shag
About These Birds
Heard Shag
63 cm. Black above; white below; orange caruncles. Endemic to Heard Island and McDonald Islands, remote Australian sub-Antarctic territory. Vulnerable; population of only a few thousand in a very restricted range. Feeds on fish and invertebrates in cold surrounding ocean.
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.