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Side-by-Side Comparison

คุณสมบัติ	Aleutian Tern	Large-billed Tern
ชื่อวิทยาศาสตร์	Onychoprion aleuticus	Phaetusa simplex
อันดับ	Charadriiformes	Charadriiformes
วงศ์ตระกูล	Laridae	Laridae
สถานะการอนุรักษ์	Vulnerable	Least Concern
ความยาว	—	—
กว้างปีก	52.4 cm (20.6 in)	58.3 cm (23.0 in)
น้ำหนัก	104.88 g (3.70 oz)	241.5 g (8.52 oz)
อาหาร	--	--
จำนวนไข่	1-4	2-3
Population Trend	—	—

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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

🌿 Wetland 🏖️ Coastal

Aleutian Tern only

🌾 Grassland

Large-billed Tern only

ไม่มี

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

สถานะการอนุรักษ์

Vulnerable

Aleutian Tern

Least Concern

Large-billed Tern

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

About These Birds

Aleutian Tern

Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.

Large-billed Tern

Large-billed Tern, 36–38 cm, is a distinctive South American freshwater tern of major river systems including the Amazon, Paraná, and Orinoco. Bold black and white plumage with a massive yellow bill and yellow feet. Piscivore; plunge-dives from height into rivers. Resident in tropical lowlands.

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