Atlantic White Tern vs Black-naped Tern
Gygis alba в сравнении с Sterna sumatrana
Side-by-Side Comparison
| Характеристика | Atlantic White Tern | Black-naped Tern |
|---|---|---|
| Научное название | Gygis alba | Sterna sumatrana |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 50,4 cm (19.8 in) | 43,1 cm (17.0 in) |
| Масса | 138,0 g (4.87 oz) | 103,75 g (3.66 oz) |
| Питание | -- | -- |
| Размер кладки | 1 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
Least Concern
Atlantic White Tern
Least Concern
Black-naped Tern
About These Birds
Atlantic White Tern
Atlantic White Tern: 28–33 cm, wingspan 76–87 cm, ethereally white seabird with blue-grey bill, blue orbital ring, and large dark eyes. Breeds on tropical Atlantic islands including Ascension and Saint Helena; related species widespread across the Indo-Pacific. Nests on bare branches with no nest material. Feeds on small fish near the surface.
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.