Andean Gull vs Large-billed Tern
Larus serranus compared with Phaetusa simplex
Side-by-Side Comparison
| Attribute | Andean Gull | Large-billed Tern |
|---|---|---|
| Scientific Name | Larus serranus | Phaetusa simplex |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 70.6 cm (27.8 in) | 58.3 cm (23.0 in) |
| Weight | 478.0 g (16.86 oz) | 241.5 g (8.52 oz) |
| Diet | -- | -- |
| Clutch Size | 1-4 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Andean Gull
Least Concern
Large-billed 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.
Large-billed Tern
Large-billed Tern, 36–38 cm, is a distinctive South American freshwater tern of major river systems including the Amazon, Paraná, and Orinoco. Bold black and white plumage with a massive yellow bill and yellow feet. Piscivore; plunge-dives from height into rivers. Resident in tropical lowlands.