Black-tailed Gull vs Common Tern

Larus crassirostris เปรียบเทียบกับ Sterna hirundo

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Side-by-Side Comparison

คุณสมบัติ Black-tailed Gull Common Tern
ชื่อวิทยาศาสตร์ Larus crassirostris Sterna hirundo
อันดับ Charadriiformes Charadriiformes
วงศ์ตระกูล Laridae Laridae
สถานะการอนุรักษ์ Least Concern Least Concern
ความยาว
กว้างปีก 72.8 cm (28.7 in) 50.7 cm (20.0 in)
น้ำหนัก 675.0 g (23.81 oz) 125.75 g (4.44 oz)
อาหาร -- --
จำนวนไข่ 2-3 2-3
Population Trend
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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

Black-tailed Gull only

ไม่มี

Common Tern only

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สถานะการอนุรักษ์

Least Concern

Black-tailed Gull

Least Concern

Common 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.

Common Tern

Common Tern, 31–35 cm, wingspan 77–98 cm, is among the most widespread seabirds, breeding across the Holarctic and wintering in the Southern Hemisphere. Grey back, white below, orange-red bill with dark tip, black cap. Plunge-dives for fish. One of the longest-distance migrants in the Northern Hemisphere.

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