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Side-by-Side Comparison

คุณสมบัติ	Black-tailed Gull	Least Tern
ชื่อวิทยาศาสตร์	Larus crassirostris	Sternula antillarum
อันดับ	Charadriiformes	Charadriiformes
วงศ์ตระกูล	Laridae	Laridae
สถานะการอนุรักษ์	Least Concern	Least Concern
ความยาว	—	—
กว้างปีก	72.8 cm (28.7 in)	33.0 cm (13.0 in)
น้ำหนัก	675.0 g (23.81 oz)	46.75 g (1.65 oz)
อาหาร	--	--
จำนวนไข่	2-3	1-3
Population Trend	—	—

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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

🏖️ Coastal

Black-tailed Gull only

ไม่มี

Least Tern only

🌿 Wetland

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

สถานะการอนุรักษ์

Least Concern

Black-tailed Gull

Least Concern

Least Tern

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About These Birds

Black-tailed Gull

Black-tailed Gull, 44–48 cm, is common on East Asian coasts from Russia to China, Japan, and Korea. Grey mantle, white body, yellow bill with red spot and black subterminal band, yellow legs. Omnivore; very vocal, known as the 'cat gull' for its mewing calls. Migratory; winters south to Vietnam.

Least Tern

Least Tern is North America's smallest tern, 22–24 cm, breeding on sandy beaches and river sandbars from the Atlantic coast to the interior. Endangered (interior subspecies). Yellow bill, white forehead, grey upperparts. Hovers and plunge-dives for small fish in coastal and riverine habitats.

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