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Side-by-Side Comparison

คุณสมบัติ	Black-tailed Gull	Bonaparte's Gull
ชื่อวิทยาศาสตร์	Larus crassirostris	Larus philadelphia
อันดับ	Charadriiformes	Charadriiformes
วงศ์ตระกูล	Laridae	Laridae
สถานะการอนุรักษ์	Least Concern	Least Concern
ความยาว	—	—
กว้างปีก	72.8 cm (28.7 in)	51.9 cm (20.4 in)
น้ำหนัก	675.0 g (23.81 oz)	204.575 g (7.22 oz)
อาหาร	--	--
จำนวนไข่	2-3	1-3
Population Trend	—	—

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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

🏖️ Coastal

Black-tailed Gull only

ไม่มี

Bonaparte's Gull only

🌿 Wetland 🌾 Grassland

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สถานะการอนุรักษ์

Least Concern

Black-tailed Gull

Least Concern

Bonaparte's Gull

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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.

Bonaparte's Gull

Bonaparte's Gull, 28–30 cm, is North America's smallest Larus gull, breeding in boreal forests near lakes and wintering on both coasts. Breeding adult has a black hood; underwing shows white triangular flash. Planktivore and piscivore; buoyant, tern-like flight. Migratory; forms large winter flocks.

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