Andean Gull vs Saunders's Tern
Larus serranus compared with Sternula saundersi
Side-by-Side Comparison
| Attribute | Andean Gull | Saunders's Tern |
|---|---|---|
| Scientific Name | Larus serranus | Sternula saundersi |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 70.6 cm (27.8 in) | 33.6 cm (13.2 in) |
| Weight | 478.0 g (16.86 oz) | 41.825 g (1.48 oz) |
| Diet | -- | -- |
| Clutch Size | 1-4 | 2 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Andean Gull
Least Concern
Saunders's 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.
Saunders's Tern
Saunders's Tern, 22–24 cm, is a small coastal tern of the Red Sea, Persian Gulf, and Indian Ocean coasts. Very similar to Little Tern; separated by darker outer primaries and slightly smaller size. Piscivore; hovers and dives in shallow coastal waters and tidal mudflats.