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Side-by-Side Comparison

คุณสมบัติ	Aleutian Tern	Ross's Gull
ชื่อวิทยาศาสตร์	Onychoprion aleuticus	Rhodostethia rosea
อันดับ	Charadriiformes	Charadriiformes
วงศ์ตระกูล	Laridae	Laridae
สถานะการอนุรักษ์	Vulnerable	Least Concern
ความยาว	—	—
กว้างปีก	52.4 cm (20.6 in)	50.2 cm (19.8 in)
น้ำหนัก	104.88 g (3.70 oz)	185.0 g (6.53 oz)
อาหาร	--	--
จำนวนไข่	1-4	1-3
Population Trend	—	—

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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

🌿 Wetland 🏖️ Coastal

Aleutian Tern only

🌾 Grassland

Ross's Gull only

ไม่มี

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สถานะการอนุรักษ์

Vulnerable

Aleutian Tern

Least Concern

Ross's Gull

{# ════════════════════════════════════════════════════════════════════════ 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.

Ross's Gull

Ross's Gull, 29–32 cm, is a delicate Arctic gull breeding in Siberian tundra, with its winter range largely unknown — possibly far out in the pack ice. Rosy flush to underparts in breeding plumage; wedge-shaped tail; black neck ring. Feeds on invertebrates and small fish along ice edges.

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