Black-tailed Gull vs Arctic Herring Gull
Larus crassirostris в сравнении с Larus smithsonianus
Side-by-Side Comparison
| Характеристика | Black-tailed Gull | Arctic Herring Gull |
|---|---|---|
| Научное название | Larus crassirostris | Larus smithsonianus |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 72,8 cm (28.7 in) | 85,9 cm (33.8 in) |
| Масса | 675,0 g (23.81 oz) | 1108,0 g (39.08 oz) |
| Питание | -- | -- |
| Размер кладки | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Black-tailed Gull only
Нет
Arctic Herring Gull only
Охранный статус
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.