Bonaparte's Gull vs Andean Gull
Larus philadelphia verglichen mit Larus serranus
Side-by-Side Comparison
| Merkmal | Bonaparte's Gull | Andean Gull |
|---|---|---|
| Wissenschaftlicher Name | Larus philadelphia | Larus serranus |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 51,9 cm (20.4 in) | 70,6 cm (27.8 in) |
| Gewicht | 204,575 g (7.22 oz) | 478,0 g (16.86 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Bonaparte's Gull
Least Concern
Andean Gull
About These Birds
Bonaparte's Gull
Bonaparte's Gull, 28–30 cm, is North America's smallest Larus gull, breeding in boreal forests near lakes and wintering on both coasts. Breeding adult has a black hood; underwing shows white triangular flash. Planktivore and piscivore; buoyant, tern-like flight. Migratory; forms large winter flocks.
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.