Black-tailed Gull vs Relict Gull

Larus crassirostris เปรียบเทียบกับ Larus relictus

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Side-by-Side Comparison

คุณสมบัติ Black-tailed Gull Relict Gull
ชื่อวิทยาศาสตร์ Larus crassirostris Larus relictus
อันดับ Charadriiformes Charadriiformes
วงศ์ตระกูล Laridae Laridae
สถานะการอนุรักษ์ Least Concern Vulnerable
ความยาว
กว้างปีก 72.8 cm (28.7 in) 67.0 cm (26.4 in)
น้ำหนัก 675.0 g (23.81 oz) 516.75 g (18.23 oz)
อาหาร -- --
จำนวนไข่ 2-3 2-3
Population Trend
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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

Black-tailed Gull only

ไม่มี

Relict Gull only

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สถานะการอนุรักษ์

Least Concern

Black-tailed Gull

Vulnerable

Relict 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.

Relict Gull

Relict Gull, 44–46 cm, is a Vulnerable species breeding on remote saline lakes in Mongolia and northern China. Black hood with white eye-crescents, red bill, red legs. Very poorly known outside breeding season; winters on Yellow Sea coasts. Threatened by drought and wetland degradation.

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