Black-tailed Gull vs Black-naped Tern
Larus crassirostris compared with Sterna sumatrana
Side-by-Side Comparison
| Attribute | Black-tailed Gull | Black-naped Tern |
|---|---|---|
| Scientific Name | Larus crassirostris | Sterna sumatrana |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 72.8 cm (28.7 in) | 43.1 cm (17.0 in) |
| Weight | 675.0 g (23.81 oz) | 103.75 g (3.66 oz) |
| Diet | -- | -- |
| Clutch Size | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Black-tailed Gull
Least Concern
Black-naped Tern
About These Birds
Black-tailed Gull
Black-tailed Gull, 44–48 cm, is common on East Asian coasts from Russia to China, Japan, and Korea. Grey mantle, white body, yellow bill with red spot and black subterminal band, yellow legs. Omnivore; very vocal, known as the 'cat gull' for its mewing calls. Migratory; winters south to Vietnam.
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.