Australian Gull-billed Tern vs Black-tailed Gull
Gelochelidon macrotarsa so với Larus crassirostris
Side-by-Side Comparison
| Thuộc Tính | Australian Gull-billed Tern | Black-tailed Gull |
|---|---|---|
| Tên Khoa Học | Gelochelidon macrotarsa | Larus crassirostris |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 61,1 cm (24.1 in) | 72,8 cm (28.7 in) |
| Khối Lượng | 246,66666666666666 g (8.70 oz) | 675,0 g (23.81 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Australian Gull-billed Tern only
Black-tailed Gull only
Không
Tình Trạng Bảo Tồn
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.