Black-tailed Gull vs Andean Gull
Larus crassirostris verglichen mit Larus serranus
Side-by-Side Comparison
| Merkmal | Black-tailed Gull | Andean Gull |
|---|---|---|
| Wissenschaftlicher Name | Larus crassirostris | Larus serranus |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 72,8 cm (28.7 in) | 70,6 cm (27.8 in) |
| Gewicht | 675,0 g (23.81 oz) | 478,0 g (16.86 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Black-tailed Gull
Least Concern
Andean 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.
Andean Gull
Andean Gull, 45–48 cm, breeds at high-altitude Andean lakes from Colombia to Argentina, typically above 3000 m. Black hood in breeding plumage; white below with grey mantle. Largely insectivore, following cattle or foraging at lake edges. Partial altitudinal migrant descending to Pacific and Atlantic coasts in winter.