Caspian Tern vs Black-tailed Gull
Hydroprogne caspia comparé à Larus crassirostris
Side-by-Side Comparison
| Attribut | Caspian Tern | Black-tailed Gull |
|---|---|---|
| Nom scientifique | Hydroprogne caspia | Larus crassirostris |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Laridae | Laridae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 82,1 cm (32.3 in) | 72,8 cm (28.7 in) |
| Poids | 656,0 g (23.14 oz) | 675,0 g (23.81 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 2-4 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Statut de conservation
Least Concern
Caspian Tern
Least Concern
Black-tailed Gull
About These Birds
Caspian Tern
Caspian Tern is the world's largest tern, 48–56 cm, wingspan 127–140 cm, with a massive blood-red bill. Found on all continents except Antarctica. Plunge-dives powerfully for large fish in coastal and freshwater habitats. Migratory; northern populations winter in the tropics. Loud, rasping call.
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.