Australian Gull-billed Tern vs Saunders's Gull
Gelochelidon macrotarsa 比較対象 Saundersilarus saundersi
Side-by-Side Comparison
| 属性 | Australian Gull-billed Tern | Saunders's Gull |
|---|---|---|
| 学名 | Gelochelidon macrotarsa | Saundersilarus saundersi |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 61.1 cm (24.1 in) | 54.8 cm (21.6 in) |
| 体重 | 246.66666666666666 g (8.70 oz) | 195.0 g (6.88 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 2-3 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Australian Gull-billed Tern
Vulnerable
Saunders's 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.
Saunders's Gull
Saunders's Gull, 29–32 cm, is a Vulnerable gull breeding in coastal saltmarshes of China and Korea, wintering along East Asian coasts to Vietnam. Black hood in breeding plumage, white wing-tip mirrors. Feeds on crustaceans and invertebrates in tidal mudflats. Threatened by reclamation of Yellow Sea tidal flats.