Andean Gull vs Black Skimmer
Larus serranus verglichen mit Rynchops niger
Side-by-Side Comparison
| Merkmal | Andean Gull | Black Skimmer |
|---|---|---|
| Wissenschaftlicher Name | Larus serranus | Rynchops niger |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 70,6 cm (27.8 in) | 73,1 cm (28.8 in) |
| Gewicht | 478,0 g (16.86 oz) | 293,6666666666667 g (10.36 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-4 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Andean Gull
Least Concern
Black Skimmer
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 Skimmer
Black Skimmer: 40–50 cm, the largest skimmer with jet black upperparts, white underparts, and an outsized red-and-black bill with protruding lower mandible. Inhabits large rivers, estuaries, and coastal lagoons of North and South America. Feeds at dawn and dusk by skimming water surface. Nests colonially on sandy beaches. Partly migratory.