Andean Gull vs Black-legged Kittiwake
Larus serranus compared with Rissa tridactyla
Side-by-Side Comparison
| Attribute | Andean Gull | Black-legged Kittiwake |
|---|---|---|
| Scientific Name | Larus serranus | Rissa tridactyla |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Vulnerable |
| Length | — | — |
| Wingspan | 70.6 cm (27.8 in) | 60.2 cm (23.7 in) |
| Weight | 478.0 g (16.86 oz) | 439.3333333333333 g (15.50 oz) |
| Diet | -- | -- |
| Clutch Size | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Andean Gull
Vulnerable
Black-legged Kittiwake
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.
Black-legged Kittiwake
Black-legged Kittiwake, 38–40 cm, wingspan 91–105 cm, is the most abundant gull globally, with millions breeding on cliff ledges across the North Atlantic and Pacific. White body, grey mantle, solid black wing tips, yellow bill, black legs. Pelagic piscivore outside breeding. Vulnerable; declining.