Caspian Tern vs Andean Gull
Hydroprogne caspia compared with Larus serranus
Side-by-Side Comparison
| Attribute | Caspian Tern | Andean Gull |
|---|---|---|
| Scientific Name | Hydroprogne caspia | Larus serranus |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 82.1 cm (32.3 in) | 70.6 cm (27.8 in) |
| Weight | 656.0 g (23.14 oz) | 478.0 g (16.86 oz) |
| Diet | -- | -- |
| Clutch Size | 2-4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Caspian Tern
Least Concern
Andean Gull
About These Birds
Caspian Tern
Caspian Tern is the world's largest tern, 48–56 cm, wingspan 127–140 cm, with a massive blood-red bill. Found on all continents except Antarctica. Plunge-dives powerfully for large fish in coastal and freshwater habitats. Migratory; northern populations winter in the tropics. Loud, rasping call.
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.