Antarctic Shag vs Chatham Islands Shag

Leucocarbo bransfieldensis compared with Leucocarbo onslowi

Side-by-Side Comparison

Attribute Antarctic Shag Chatham Islands Shag
Scientific Name Leucocarbo bransfieldensis Leucocarbo onslowi
Order Suliformes Suliformes
Family Phalacrocoracidae Phalacrocoracidae
Conservation Status Not Evaluated Critically Endangered
Length
Wingspan 51.8 cm (20.4 in)
Weight 2780.0 g (98.06 oz) 2095.0 g (73.90 oz)
Diet -- --
Clutch Size 2-3 3
Population Trend

Habitat Comparison

Shared Habitats

Antarctic Shag only

None

Chatham Islands Shag only

None

Conservation Status

Not Evaluated

Antarctic Shag

Critically Endangered

Chatham Islands Shag

About These Birds

Antarctic Shag

63–72 cm. Black above; white below; caruncles reduced compared to related shags. Breeds on the Antarctic Peninsula and associated islands. Feeds on fish in cold Antarctic coastal waters. One of the southernmost-breeding cormorants; largely sedentary around breeding colonies.

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.

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