Black-tailed Gull vs Bonaparte's Gull
Larus crassirostris dibandingkan dengan Larus philadelphia
Side-by-Side Comparison
| Atribut | Black-tailed Gull | Bonaparte's Gull |
|---|---|---|
| Nama Ilmiah | Larus crassirostris | Larus philadelphia |
| Ordo | Charadriiformes | Charadriiformes |
| Famili | Laridae | Laridae |
| Status Konservasi | Least Concern | Least Concern |
| Panjang | — | — |
| Rentang Sayap | 72,8 cm (28.7 in) | 51,9 cm (20.4 in) |
| Berat | 675,0 g (23.81 oz) | 204,575 g (7.22 oz) |
| Diet | -- | -- |
| Ukuran Sarang | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Status Konservasi
Least Concern
Black-tailed Gull
Least Concern
Bonaparte'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.
Bonaparte's Gull
Bonaparte's Gull, 28–30 cm, is North America's smallest Larus gull, breeding in boreal forests near lakes and wintering on both coasts. Breeding adult has a black hood; underwing shows white triangular flash. Planktivore and piscivore; buoyant, tern-like flight. Migratory; forms large winter flocks.