Andean Gull vs Peruvian Tern
Larus serranus compared with Sternula lorata
Side-by-Side Comparison
| Attribute | Andean Gull | Peruvian Tern |
|---|---|---|
| Scientific Name | Larus serranus | Sternula lorata |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Endangered |
| Length | — | — |
| Wingspan | 70.6 cm (27.8 in) | 34.7 cm (13.7 in) |
| Weight | 478.0 g (16.86 oz) | 52.0 g (1.83 oz) |
| Diet | -- | -- |
| Clutch Size | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Andean Gull
Endangered
Peruvian 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.
Peruvian Tern
Peruvian Tern, 23–25 cm, is an Endangered tern restricted to the Humboldt Current coastline of Peru and northern Chile. White forehead, yellow bill, grey above. Breeds on barren coastal deserts and fishmeal industry areas. Severely threatened by habitat disturbance and introduced predators.