Chatham Islands Shag vs Little Black Cormorant

Leucocarbo onslowi compared with Phalacrocorax sulcirostris

Side-by-Side Comparison

Attribute Chatham Islands Shag Little Black Cormorant
Scientific Name Leucocarbo onslowi Phalacrocorax sulcirostris
Order Suliformes Suliformes
Family Phalacrocoracidae Phalacrocoracidae
Conservation Status Critically Endangered Least Concern
Length — —
Wingspan 51.8 cm (20.4 in) 49.8 cm (19.6 in)
Weight 2095.0 g (73.90 oz) 971.6666666666666 g (34.27 oz)
Diet -- --
Clutch Size 3 3-4
Population Trend — —

Habitat Comparison

Shared Habitats

Chatham Islands Shag only

None

Little Black Cormorant only

Conservation Status

Critically Endangered

Chatham Islands Shag

Least Concern

Little Black Cormorant

About These Birds

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.

Little Black Cormorant

55–65 cm. All-black; glossy green-blue; bare black facial skin. Widespread across Australia, New Zealand, and Southeast Asia in freshwater and marine environments. Highly gregarious; nests colonially in trees. Feeds on fish by pursuit-diving; often seen drying wings on posts.

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