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Side-by-Side Comparison

属性	Great Cormorant	Pitt Island Shag
学名	Phalacrocorax carbo	Phalacrocorax featherstoni
目	Suliformes	Suliformes
科	Phalacrocoracidae	Phalacrocoracidae
保全状況	Least Concern	Endangered
体長	90.0 cm (35.4 in)	—
翼開長	145.0 cm (57.1 in)	43.7 cm (17.2 in)
体重	2600.0 g (91.71 oz)	1043.75 g (36.82 oz)
食性	Fish caught by diving from the surface. Pursues prey underwater using powerful feet for propulsion. …	--
一腹卵数	1-7	3
Population Trend	—	—

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Size Comparison

Body Length

Great Cormorant 90.0 cm

Pitt Island Shag —

翼開長

Great Cormorant 145.0 cm

Pitt Island Shag 43.7 cm

体重

Great Cormorant 2600.0 g

Pitt Island Shag 1043.75 g

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Habitat Comparison

共通生息地

🏖️ Coastal

Great Cormorant only

🌿 Wetland

Pitt Island Shag only

None

Great Cormorant

Coasts, estuaries, lakes, rivers, and reservoirs. Nests in colonies in trees, on cliffs, or on the ground.

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Song & Call Comparison

Great Cormorant

さえずり

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.

Pitt Island Shag

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Geographic Range & Migration

Great Cormorant

Very wide range across Europe, Asia, Africa, and Australasia. One of the most widespread cormorant species.

Pitt Island Shag

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保全状況

Least Concern

Great Cormorant

Endangered

Pitt Island Shag

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How to Tell Them Apart

Great Cormorant

羽毛

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.

くちばし

Long, hooked, dark bill with a yellow gape

Pitt Island Shag

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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.

Pitt Island Shag

ニュージーランドのチャタム諸島に固有の飛べないカワウで、絶滅危惧種に指定されている。個体数が非常に少なく、導入捕食者による影響を受けやすい。

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Related Comparisons

Great Cormorant vs Northern Gannet

look-alike

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More Birds to Explore

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