Black-tailed Gull vs Great Black-backed Gull
Larus crassirostris ile kıyaslandığında Larus marinus
Side-by-Side Comparison
| Özellik | Black-tailed Gull | Great Black-backed Gull |
|---|---|---|
| Bilimsel Ad | Larus crassirostris | Larus marinus |
| Takım | Charadriiformes | Charadriiformes |
| Familya | Laridae | Laridae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 72,8 cm (28.7 in) | 95,6 cm (37.6 in) |
| Ağırlık | 675,0 g (23.81 oz) | 1678,3333333333333 g (59.20 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Black-tailed Gull only
Hiçbiri
Great Black-backed Gull only
Koruma Durumu
Least Concern
Black-tailed Gull
Least Concern
Great Black-backed 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.
Great Black-backed Gull
Great Black-backed Gull, 61–74 cm, wingspan 142–168 cm, is the world's largest gull, breeding along North Atlantic coasts. Jet-black mantle, white body, massive yellow bill. Dominant predator among seabirds; preys on seabird chicks, puffins, rabbits, as well as scavenging. Partially migratory.