Andean Gull vs Black-naped Tern
Larus serranus से तुलना Sterna sumatrana
Side-by-Side Comparison
| विशेषता | Andean Gull | Black-naped Tern |
|---|---|---|
| वैज्ञानिक नाम | Larus serranus | Sterna sumatrana |
| गण | Charadriiformes | Charadriiformes |
| कुल | Laridae | Laridae |
| संरक्षण स्थिति | Least Concern | Least Concern |
| लंबाई | — | — |
| पंखों का फैलाव | 70.6 cm (27.8 in) | 43.1 cm (17.0 in) |
| वजन | 478.0 g (16.86 oz) | 103.75 g (3.66 oz) |
| आहार | -- | -- |
| अंडों की संख्या | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
संरक्षण स्थिति
Least Concern
Andean Gull
Least Concern
Black-naped 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.
Black-naped Tern
Black-naped Tern, 30–32 cm, breeds on tropical Indo-Pacific coral islands from the Maldives to Polynesia. White overall with a narrow black nape band connecting the black lores — a delicate, elegant pattern. Piscivore; surface-dips and shallow dives in clear tropical waters over reefs.