Black-tailed Gull vs Yellow-footed Gull
Larus crassirostris verglichen mit Larus livens
Side-by-Side Comparison
| Merkmal | Black-tailed Gull | Yellow-footed Gull |
|---|---|---|
| Wissenschaftlicher Name | Larus crassirostris | Larus livens |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 72,8 cm (28.7 in) | 80,7 cm (31.8 in) |
| Gewicht | 675,0 g (23.81 oz) | 1295,0 g (45.68 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Black-tailed Gull
Least Concern
Yellow-footed 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.
Yellow-footed Gull
Yellow-footed Gull, 53–58 cm, has a very restricted range — endemic to the Gulf of California with post-breeding dispersal to Salton Sea. Yellow feet (unique among large western gulls), yellow bill with red spot. Piscivore and scavenger; forages on rocky shores. Resident; does not undertake long migrations.