Black-tailed Gull vs Arctic Herring Gull
Larus crassirostris ile kıyaslandığında Larus smithsonianus
Side-by-Side Comparison
| Özellik | Black-tailed Gull | Arctic Herring Gull |
|---|---|---|
| Bilimsel Ad | Larus crassirostris | Larus smithsonianus |
| Takım | Charadriiformes | Charadriiformes |
| Familya | Laridae | Laridae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 72,8 cm (28.7 in) | 85,9 cm (33.8 in) |
| Ağırlık | 675,0 g (23.81 oz) | 1108,0 g (39.08 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Black-tailed Gull only
Hiçbiri
Arctic Herring Gull only
Koruma Durumu
Least Concern
Black-tailed Gull
Least Concern
Arctic Herring 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.
Arctic Herring Gull
Arctic Herring Gull, 55–66 cm, breeds across Arctic North America and winters on all coasts of the US. Formerly lumped with European Herring Gull; darker-eyed on average, slightly more northerly range. Omnivore and scavenger; abundant at fishing ports, dumps, and beaches in winter.