Australian Gull-billed Tern vs Black-tailed Gull
Gelochelidon macrotarsa verglichen mit Larus crassirostris
Side-by-Side Comparison
| Merkmal | Australian Gull-billed Tern | Black-tailed Gull |
|---|---|---|
| Wissenschaftlicher Name | Gelochelidon macrotarsa | Larus crassirostris |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 61,1 cm (24.1 in) | 72,8 cm (28.7 in) |
| Gewicht | 246,66666666666666 g (8.70 oz) | 675,0 g (23.81 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Gemeinsame Lebensräume
Australian Gull-billed Tern only
Black-tailed Gull only
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Erhaltungsstatus
Least Concern
Australian Gull-billed Tern
Least Concern
Black-tailed Gull
About These Birds
Australian Gull-billed Tern
Australian Gull-billed Tern, 38–42 cm, is a large, heavy-billed tern endemic to Australia, breeding in arid inland wetlands. Pale grey above, white below, with a robust black bill. Takes insects, small reptiles, and crabs rather than diving for fish. Nomadic in response to inland rainfall.
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.