{# ════════════════════════════════════════════════════════════════════════ Side-by-side Comparison Table ════════════════════════════════════════════════════════════════════════ #}

Side-by-Side Comparison

คุณสมบัติ	American Black Oystercatcher	Variable Oystercatcher
ชื่อวิทยาศาสตร์	Haematopus bachmani	Haematopus unicolor
อันดับ	Charadriiformes	Charadriiformes
วงศ์ตระกูล	Haematopodidae	Haematopodidae
สถานะการอนุรักษ์	Not Evaluated	Least Concern
ความยาว	—	—
กว้างปีก	—	54.1 cm (21.3 in)
น้ำหนัก	600.25 g (21.17 oz)	683.1666666666666 g (24.10 oz)
อาหาร	--	--
จำนวนไข่	1-4	2-3
Population Trend	—	—

{# ════════════════════════════════════════════════════════════════════════ Visual Size Comparison ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Habitat Comparison ════════════════════════════════════════════════════════════════════════ #}

Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

🏖️ Coastal

American Black Oystercatcher only

ไม่มี

Variable Oystercatcher only

ไม่มี

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

สถานะการอนุรักษ์

Not Evaluated

American Black Oystercatcher

Least Concern

Variable Oystercatcher

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

About These Birds

American Black Oystercatcher

American Black Oystercatcher (Haematopus bachmani) is a large 42–47 cm all-dark oystercatcher of the Pacific coast of North America. Sooty black plumage; bright orange-red bill; pale pinkish legs; yellow eye with orange ring. Inhabits rocky coasts and offshore islands from Alaska south to Baja California. Feeds on mussels, limpets, and barnacles.

Variable Oystercatcher

Variable Oystercatcher (Haematopus unicolor) is a large 46–49 cm oystercatcher endemic to New Zealand's coastline. Plumage ranges from all-black to pied (black and white) within the same population. Orange-red bill; pink legs. Inhabits rocky and sandy shores around both main islands and offshore islands. Feeds on bivalves, worms, and crustaceans.

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More Birds to Explore

More from Haematopodidae

American Oystercatcher Haematopus palliatus African Oystercatcher Haematopus moquini Eurasian Oystercatcher Haematopus ostralegus Pied Oystercatcher Haematopus longirostris All Haematopodidae birds →

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