Western Gull vs Andean Gull
Larus occidentalis เปรียบเทียบกับ Larus serranus
Side-by-Side Comparison
| คุณสมบัติ | Western Gull | Andean Gull |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Larus occidentalis | Larus serranus |
| อันดับ | Charadriiformes | Charadriiformes |
| วงศ์ตระกูล | Laridae | Laridae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 79.5 cm (31.3 in) | 70.6 cm (27.8 in) |
| น้ำหนัก | 957.5 g (33.77 oz) | 478.0 g (16.86 oz) |
| อาหาร | -- | -- |
| จำนวนไข่ | 1-5 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
สถานะการอนุรักษ์
Least Concern
Western Gull
Least Concern
Andean Gull
About These Birds
Western Gull
Western Gull, 55–68 cm, is the dominant large gull on the US Pacific coast from Washington to Baja California. Dark-mantled with pink legs, yellow bill with red spot. Omnivore; breeds on offshore islands, scavenges at harbours and landfills. Non-migratory; resident along its breeding coast.
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.