Black-tailed Gull vs Common Tern
Larus crassirostris comparé à Sterna hirundo
Side-by-Side Comparison
| Attribut | Black-tailed Gull | Common Tern |
|---|---|---|
| Nom scientifique | Larus crassirostris | Sterna hirundo |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Laridae | Laridae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 72,8 cm (28.7 in) | 50,7 cm (20.0 in) |
| Poids | 675,0 g (23.81 oz) | 125,75 g (4.44 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Statut de conservation
Least Concern
Black-tailed Gull
Least Concern
Common 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.
Common Tern
Common Tern, 31–35 cm, wingspan 77–98 cm, is among the most widespread seabirds, breeding across the Holarctic and wintering in the Southern Hemisphere. Grey back, white below, orange-red bill with dark tip, black cap. Plunge-dives for fish. One of the longest-distance migrants in the Northern Hemisphere.