Black-tailed Gull vs Hartlaub's Gull
Larus crassirostris в сравнении с Larus hartlaubii
Side-by-Side Comparison
| Характеристика | Black-tailed Gull | Hartlaub's Gull |
|---|---|---|
| Научное название | Larus crassirostris | Larus hartlaubii |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 72,8 cm (28.7 in) | 54,0 cm (21.3 in) |
| Масса | 675,0 g (23.81 oz) | 287,5 g (10.14 oz) |
| Питание | -- | -- |
| Размер кладки | 2-3 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
Least Concern
Black-tailed Gull
Least Concern
Hartlaub'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.
Hartlaub's Gull
Hartlaub's Gull, 38–40 cm, is endemic to the Benguela Current coast of Namibia and South Africa. White with grey mantle, dark red bill. Resident; forages on beaches, at harbours, and over cold upwelling waters for fish offal and marine invertebrates. Population stable but range restricted.