Slaty-backed Gull vs Andean Gull
Larus schistisagus เปรียบเทียบกับ Larus serranus
Side-by-Side Comparison
| คุณสมบัติ | Slaty-backed Gull | Andean Gull |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Larus schistisagus | Larus serranus |
| อันดับ | Charadriiformes | Charadriiformes |
| วงศ์ตระกูล | Laridae | Laridae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 87.0 cm (34.3 in) | 70.6 cm (27.8 in) |
| น้ำหนัก | 1280.5 g (45.17 oz) | 478.0 g (16.86 oz) |
| อาหาร | -- | -- |
| จำนวนไข่ | 1-4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
สถานะการอนุรักษ์
Least Concern
Slaty-backed Gull
Least Concern
Andean Gull
About These Birds
Slaty-backed Gull
Slaty-backed Gull, 55–68 cm, breeds on coasts and cliffs of the Russian Far East, wintering south to Japan and occasionally the US Pacific coast. Dark slate-grey mantle, pink legs, 'string of pearls' white mirrors on outer wing. Omnivore; scavenges at fishing ports in East Asian harbours.
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.