Andean Gull vs West African Crested Tern
Larus serranus verglichen mit Thalasseus albididorsalis
Side-by-Side Comparison
| Merkmal | Andean Gull | West African Crested Tern |
|---|---|---|
| Wissenschaftlicher Name | Larus serranus | Thalasseus albididorsalis |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Not Evaluated |
| Länge | — | — |
| Flügelspannweite | 70,6 cm (27.8 in) | — |
| Gewicht | 478,0 g (16.86 oz) | 380,0 g (13.40 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Andean Gull
Not Evaluated
West African Crested Tern
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.
West African Crested Tern
West African Crested Tern, 42–45 cm, breeds on Atlantic islands from Mauritania to Angola. Pale grey back, orange bill, black crest. Piscivore; forages along the rich upwelling zone off West Africa. Recently split from Lesser Crested Tern. Coastal and offshore forager in tropical waters.