Black-tailed Gull vs Hartlaub's Gull
Larus crassirostris ile kıyaslandığında Larus hartlaubii
Side-by-Side Comparison
| Özellik | Black-tailed Gull | Hartlaub's Gull |
|---|---|---|
| Bilimsel Ad | Larus crassirostris | Larus hartlaubii |
| Takım | Charadriiformes | Charadriiformes |
| Familya | Laridae | Laridae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 72,8 cm (28.7 in) | 54,0 cm (21.3 in) |
| Ağırlık | 675,0 g (23.81 oz) | 287,5 g (10.14 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 2-3 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
Koruma Durumu
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.