California Gull vs Black-tailed Gull
Larus californicus so với Larus crassirostris
Side-by-Side Comparison
| Thuộc Tính | California Gull | Black-tailed Gull |
|---|---|---|
| Tên Khoa Học | Larus californicus | Larus crassirostris |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 75,4 cm (29.7 in) | 72,8 cm (28.7 in) |
| Khối Lượng | 717,5 g (25.31 oz) | 675,0 g (23.81 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-4 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
California Gull only
Black-tailed Gull only
Không
Tình Trạng Bảo Tồn
Least Concern
California Gull
Least Concern
Black-tailed Gull
About These Birds
California Gull
California Gull, 46–55 cm, breeds at inland lakes of western North America and winters on the Pacific coast. Yellow bill with red and black spot, greenish-yellow legs. Omnivore; famous for saving Utah crickets crops in 1848 — commemorated as Utah's state bird. Strongly migratory.
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.