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Side-by-Side Comparison

Attribute	Chatham Islands Oystercatcher	Eurasian Oystercatcher
Scientific Name	Haematopus chathamensis	Haematopus ostralegus
Order	Charadriiformes	Charadriiformes
Family	Haematopodidae	Haematopodidae
Conservation Status	Endangered	Near Threatened
Length	—	—
Wingspan	50.4 cm (19.8 in)	50.1 cm (19.7 in)
Weight	580.0 g (20.46 oz)	600.0 g (21.16 oz)
Diet	--	--
Clutch Size	2-3	2-5
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🏖️ Coastal

Chatham Islands Oystercatcher only

None

Eurasian Oystercatcher only

🌿 Wetland

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Conservation Status

Endangered

Chatham Islands Oystercatcher

Near Threatened

Eurasian Oystercatcher

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

About These Birds

Chatham Islands Oystercatcher

Chatham Islands Oystercatcher (Haematopus chathamensis) is a large 47–49 cm oystercatcher endemic to the Chatham Islands, New Zealand. Black and white patterning; orange-red bill; pink legs. Critically Endangered; world population only ~440 birds. Inhabits rocky shores and sandy beaches on the Chatham Islands.

Eurasian Oystercatcher

Eurasian Oystercatcher (Haematopus ostralegus) is a large 40–48 cm, familiar black and white shorebird of Eurasia and Africa. Black upperparts and breast; white underparts; long orange-red bill; pink legs. Inhabits rocky and sandy coasts, tidal mudflats, and inland rivers. Migratory; winters in Africa and Southern Europe.

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