Black-tailed Gull vs Glaucous Gull
Larus crassirostris verglichen mit Larus hyperboreus
Side-by-Side Comparison
| Merkmal | Black-tailed Gull | Glaucous Gull |
|---|---|---|
| Wissenschaftlicher Name | Larus crassirostris | Larus hyperboreus |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 72,8 cm (28.7 in) | 92,6 cm (36.5 in) |
| Gewicht | 675,0 g (23.81 oz) | 1933,3333333333333 g (68.20 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Black-tailed Gull
Least Concern
Glaucous 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.
Glaucous Gull
Glaucous Gull, 62–68 cm, is an imposing all-white Arctic gull — no dark markings on wing tips. Breeds across the High Arctic and ventures south in winter to both sides of the North Atlantic and Pacific. Predator and scavenger; preys on seabird eggs and chicks at colonies. Powerful aggressive kleptoparasite.