Andean Gull vs Ross's Gull
Larus serranus comparé à Rhodostethia rosea
Side-by-Side Comparison
| Attribut | Andean Gull | Ross's Gull |
|---|---|---|
| Nom scientifique | Larus serranus | Rhodostethia rosea |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Laridae | Laridae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 70,6 cm (27.8 in) | 50,2 cm (19.8 in) |
| Poids | 478,0 g (16.86 oz) | 185,0 g (6.53 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Statut de conservation
Least Concern
Andean Gull
Least Concern
Ross's Gull
About These Birds
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.
Ross's Gull
Ross's Gull, 29–32 cm, is a delicate Arctic gull breeding in Siberian tundra, with its winter range largely unknown — possibly far out in the pack ice. Rosy flush to underparts in breeding plumage; wedge-shaped tail; black neck ring. Feeds on invertebrates and small fish along ice edges.