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Side-by-Side Comparison

Attribute	Blackish Oystercatcher	South Island Oystercatcher
Scientific Name	Haematopus ater	Haematopus finschi
Order	Charadriiformes	Charadriiformes
Family	Haematopodidae	Haematopodidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	50.9 cm (20.0 in)	50.4 cm (19.8 in)
Weight	717.5 g (25.31 oz)	534.25 g (18.85 oz)
Diet	--	--
Clutch Size	1-3	1-3
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🏖️ Coastal

Blackish Oystercatcher only

None

South Island Oystercatcher only

🌾 Grassland 🌿 Wetland

{# ════════════════════════════════════════════════════════════════════════ Song & Call Comparison ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Geographic Range & Migration ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Conservation Status Comparison ════════════════════════════════════════════════════════════════════════ #}

Conservation Status

Least Concern

Blackish Oystercatcher

Least Concern

South Island Oystercatcher

{# ════════════════════════════════════════════════════════════════════════ Identification Tips — How to Tell Them Apart ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ About Each Bird (Descriptions) ════════════════════════════════════════════════════════════════════════ #}

About These Birds

Blackish Oystercatcher

Blackish Oystercatcher (Haematopus ater) is a large 42–46 cm entirely dark oystercatcher of the Pacific coast of South America. Sooty black-brown plumage; orange-red bill; pale pinkish legs. Inhabits rocky coasts and offshore islands from Peru south through Chile to Tierra del Fuego and the Falkland Islands.

South Island Oystercatcher

South Island Oystercatcher (Haematopus finschi) is a large 44–49 cm oystercatcher endemic to New Zealand. Black above, white below; orange-red bill; pinkish legs. Breeds on braided riverbeds of South Island; winters on North Island and Stewart Island tidal flats. The only New Zealand oystercatcher that migrates between islands.

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