Black-tailed Gull vs Franklin's Gull
Larus crassirostris so với Larus pipixcan
Side-by-Side Comparison
| Thuộc Tính | Black-tailed Gull | Franklin's Gull |
|---|---|---|
| Tên Khoa Học | Larus crassirostris | Larus pipixcan |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 72,8 cm (28.7 in) | 55,9 cm (22.0 in) |
| Khối Lượng | 675,0 g (23.81 oz) | 279,8333333333333 g (9.87 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Black-tailed Gull only
Không
Franklin's Gull only
Tình Trạng Bảo Tồn
Least Concern
Black-tailed Gull
Least Concern
Franklin's Gull
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.
Franklin's Gull
Franklin's Gull, 32–36 cm, makes one of the longest overland migrations of any gull, breeding on prairie marshes of North America and wintering on Pacific coasts of South America — a journey of 12,000+ km. Rosy-flushed underparts in spring; black hood with distinctive white eye-crescents. Insectivore.