Black-tailed Gull vs Black-bellied Tern
Larus crassirostris compared with Sterna acuticauda
Side-by-Side Comparison
| Attribute | Black-tailed Gull | Black-bellied Tern |
|---|---|---|
| Scientific Name | Larus crassirostris | Sterna acuticauda |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Endangered |
| Length | — | — |
| Wingspan | 72.8 cm (28.7 in) | 44.8 cm (17.6 in) |
| Weight | 675.0 g (23.81 oz) | 159.5 g (5.63 oz) |
| Diet | -- | -- |
| Clutch Size | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Black-tailed Gull
Endangered
Black-bellied 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-bellied Tern
Black-bellied Tern, 32–34 cm, is an Endangered freshwater tern of the Indian subcontinent, breeding on large river sandbars from Pakistan to Myanmar. Black belly contrasts with grey upperparts in breeding plumage; orange bill. Plunge-dives for small fish. Severely threatened by river modification.